The process by which energy in a radio wave passing through the ionosphere is converted to heat through electron collisions with other particles. For applications using frequencies above the VLF range, absorption predominately occurs in the D region. The amount of absorbed energy is normally expressed as a ratio of the expected level to the measured level, and is given in decibels (dB).
A process in which one material (the absorbent) takes in or absorbs another (the absorbate).
In lithography, the process by which a liquid is drawn into a porous surface.
Act of soaking up and retaining a gas in liquid or in a solid; also retention of radiant energy.
The passage of liquid and digested (soluble) food across the gut wall.
(4) the uptake of a gas by a solid or liquid, or a liquid by a solid. Absorption differs from adsorption in that the absorbed substance permeates the bulk of the absorbing substance. Also used to describe uptake by plants and animals.
The process the body uses to move elements from the outside world into the blood and other tissues. Food is absorbed through the stomach and intestines. Nicotine is absorbed through the lungs.
Loss or dissipation of energy as it travels through a medium, Example: radio waves lose some of their energy as they travel through the atmosphere.
Uptake (in this context, of a pesticide) by plants, animals (including humans), microorganisms, or soil.
The process of combining a particle with an atom, a nucleus, or another particle.
The process by which electromagnetic radiation (EMR) is assimilated and converted into other forms of energy, primarily heat. Absorption takes place only on the EMR that enters a medium. A substance that absorbs EMR may also be a medium of refraction, diffraction, or scattering; however, these processes involve no energy retention or transformation and are distinct from absorption.
A physio-chemical process in which a substance associates with another to form a homogeneous mixture present in the characteristics of a solution.
(1) Of light: complete retention, without reflection or transmission. (2) Of liquids: soaking up (taking in through pores or cracks).
Quality of a surface or substance to take in, not reflect, a sound wave.
The process in which incident radiant energy is retained by a substance by conversion to some other form of energy.
A process by which nutrients move from the lower digestive tract (small and large intestine or colon) into the blood stream to be utilized by the body.
When sound waves contact a room surface such as a ceiling, wall or floor, a portion of the sound energy is reflected back into the room, and the rest is considered to be absorbed primarily by conversion into heat due to friction within a porous material, or by vibration of a solid material.
a process in which a cell, tissue or organ takes up a substance. Compare secretion.
The property that causes paper to take up liquids or vapors, such as the ability of a certain type of paper to absorb a certain type of ink.
Process by which a substance or particle is drawn into the structure of another.
The process in which incident radiant energy is retained by a substance. Absorbed energy results in surface heating. Objects take heat and reradiate it at different wavelengths.
A measure of the ability of a surface to absorb incident energy, often at specific wavelengths.
Absorption of light refers to the removal of photons from a light stream. The energy of the photon is absorbed by the molecule and converted to heat.
The process of taking in, as when a sponge takes up water. Chemicals can be absorbed into the bloodstream after breathing or swallowing. Chemicals can also be absorbed through the skin into the bloodstream and then transported to other organs.
The process by which a substance is taken into and included within another substance, e.g., intake of water by soil, or intake of gases, water, nutrients or other substances by plants.
The property of a material that changes acoustic energy into (usually) heat energy. A material or surface that absorbs sound waves does not reflect them. Absorption of a given material is frequency dependant as well as being affected by the size, shape, location, and mounting method used. see also absorption coefficient
Process whereby, when two phases are brought into contact, a particular component is transferred from one phase to the other. PAC, 1972
Phenomenon in which radiation transfers some or all of its energy to matter which it traverses. ISO, 1972
The process by which nutrients are absorbed by the intestinal tract into the body's capillaries and bloodstream in order to affect the body.
the process in which nutrients enter cells of the villi, then move across the cells and enter blood vessels.
The penetration of a substance into or through another substance or medium. The uptake and entry of a substance through intact skin, eyes, or linings of the body (i.e., ingestion or once the substance has entered the lungs).
(of electromagnetic energy) The conversion of electromagnetic energy to some other form of energy by matter when electromagnetic radiation is incident upon matter.
1) The process by which one substance is taken into the body of another substance. 2) The penetration of molecules or ions of one or more substances (gas, liquid or solid) into the interior of another substance.
Dissipation of the energy of electromagnetic waves into other forms as a result of its interaction with matter, a decrease in directional transmittance of incident radiation, resulting in a modification or conversion of the absorbed energy.
The passage of digested food and other substances across the walls of the stomach and intestine.
In paper, the property which causes it to take up liquids or vapours in contact with it.
Ability of a material to absorb sound energy and reduce sound intensity.
n physics, the taking up of light, heat, or other energy by molecules. The absorbed energy is converted into heat; Absorption in chemistry is the taking up of one substance by another. For example, a gas such as oxygen may be absorbed, or dissolved, in water. In the HVAC industry we absorbed heat energy from the medium being cooled and transfer that energy in the refrigerant.
dissolving of a vapour phase in a liquid medium
exchange phenomena between gaseous phase and solid phase, resulting in bonds being set up/broken between the molecules making up the gas and the substrate
The conversion of sound or radio frequency (RF) energy into heat.
The process in which one substance is taken into the body of an absorbent.
A process by which incident radiation is taken into a body and retained without reflection or transmission. It increases either the internal or the kinetic energy of the molecules or atoms composing the absorbing medium.
The process by which a filter media traps unwanted molecules.
A phenomenon where a substance (the absorbate) is taken into pores, voids, or interstices of a material (the absorbent); process of soaking up. See also Adsorption.
One cause of fiber optic attenuation where light signal is absorbed into the glass during transmission.
In acoustics, the changing of sound energy to heat.
the process of soaking up, or assimilation
energy transfer from a photon of light to a chromogenic molecule.
What happens when wave passes through a medium and gives up some of its energy.
A mode of entry of a toxic substance into the body in which the substance enters through the unbroken skin.
The process whereby electrons in an atom absorb energy, thus increasing their energy state to a higher and unstable state.
the entry or uptake of a substance into the body, either across a tissue or cells.
1) A mechanical phenomenon wherein one substance penetrates into the inner structure of another, as in absorbent cotton or a sponge. 2) An optical phenomenon wherein atoms or molecules block or attenuate the transmission of a beam of electromagnetic radiation.
The taking in or soaking up of one substance into the body of another by molecular or chemical action (as tree roots absorb dissolved nutrients in the soil).
Transformation of radiant energy to a different form of energy by the interaction of matter, depending on temperature and wavelength.
(physics) the process in which incident radiated energy is retained without reflection or transmission on passing through a medium; "the absorption of photons by atoms or molecules"
the social process of absorbing one cultural group into harmony with another
the process of absorbing nutrients into the body after digestion
a passive process which requires no energy DL- Methionine is absorbed through an active transport process which required energy
The inclusion of the energy of a photon within a substance.
here: absorption of light. If a beam of light goes through an absorbing substance like a dye, the light gets weaker. The reason is that molecules interact with the light and transform it into different forms of energy, like heat or chemical energy.
The process or action of taking in or assimilating something; e.g. the absorption of the sun's energy by the land or water
Process in which a substance receives other. In absorption process's it is verified the absorption of gas or liquid by a solid or liquid. The absorbed substance is "infiltrated" in the substance that absorbes.
Absorption is the uptake of fluids or other substances by the tissues of the body. Digested food is absorbed into the blood and lymph from the alimentary canal. Most absorption of food occurs in the small intestine.
The process in which digested food is absorbed into the blood stream.
the process by which one material extracts other substances from a mixture of gases or liquids
A property that causes paper to accept liquids or vapors coming in contact with the paper.
The ratio of how much infrared radiation is absorbed by a surface, and later emitted, as a percentage of the total amount of energy exposed to the surface. The percentage of absorption is basically equal to its emissivity.
Penetration of one substance into the mass of another. Not to be confused with adsorption, which is a surface phenomenon only.
the process by which a substance acquires energy by promotion to excited electronic, vibrational or rotational states.
The process in which food nutrients are taken from the intestinal lumen into the bloodstream for distribution to all cells in the body.
The degree and speed at which a drug enters the bloodstream.
The process by which one substance draws into itself another substance, i.e., water absorbed by a sponge. A process by which organic material is consumed by microorganisms.
Absorption is a process in which one substance absorbs another substance onto or into its surface. For instance, a cotton cloth or wiper can absorb sticky soils and liquids transferring the soils from the restroom surface to the cotton cloth.
Weakening (loss) of radiation when it passes through a material (part of the radiant energy of light, for example, is converted into heat).
The loss of light energy in an optical fiber resulting from impurities in the glass.
Penetration of a substance into the body of another substance
Assimilation of one body by another; act of absorbing.
To absorb is to receive (an impulse) without echo or recoil: a fabric that absorbs sound; a bumper that absorbs impact; therefore absorption is the act or process of absorbing. The absorption of sound is the process by which sound energy is diminished when passing through a medium or when striking a surface, i.e., sound is attenuated by absorption. (AHD) The physical mechanism is usually the conversion of sound into heat, i.e. sound molecules lose energy upon striking the material's atoms, which become agitated, which we characterized as warmth; thus, absorption is literally the changing of sound energy to heat. A material's ability to absorb sound is quantified by its absorption coefficient, whose value ranges between 0 (total reflection) and 1 (total absorption), and just to keep things interesting, varies with sound frequency and the angle of incidence.
The movement of a substance through a membrane. For example, the movement of nutrients from the digestive tract into the bloodstream.
The transfer of molecules from the bulk of the gas to a liquid surface, followed by diffusion of these molecules to the bulk of the liquid.
The movement of a fluid or a dissolved substance across a membrane.
The process whereby nutrients pass into the bloodstream for use by the body
The uptake of drug into or across tissues.
the process in which nutrients, toxins or other materials are taken into cells or tissues.
Usually refers to resins penetrating (being absorbed by) a porous substance.
The penetration of liquid into aggregate particles with a increase in particle weight.
The uptake by the body of a supplement, medication, or other substance through the digestive tract, skin, or mucous membranes.
The process of nutrients passing from the intestinal tract into the bloodstream to sustain the life processes. Nutritional deficiencies can be caused by nutrients not being absorbed properly.
The process in which molecules of a gas or liquid are taken up and incorporated into the physical structure of another solid or liquid.
Degree to which colorants are absorbed by a print surface.
A process whereby gas or vapor molecules are transferred to the liquid phase.1
The action of a solid or liquid in taking up and retaining another substance uniformly throughout its internal structure.
To soak up as a sponge takes water.
is the assimilation of molecules, or other particles, into the physical structure of a liquid or solid, without chemical reaction.
The loss of light as it passes through a material, generally due to its conversion to other energy forms (typically heat).
A property of paper; absorption is the ability of paper to take up liquids or vapors. This plays a key role in the quality of the bonding process of the adhesives used to manufacture an envelope, and in the storage process as the stored envelopes are subjected to humidity.
The penetration into the mass of one substance by another.
Local deposition of energy.
For a vitamin or mineral to be used by the body, it has to pass from the intestine to the blood or lymphatic system. This is called absorption.
the process of nutrients passing from the intestine into the blood stream.
The uptake of substances by the skin, respiratory and gastrointestinal tract.
When a weight of water is permeated or soaked into a paver unit. Often referred to as a ‘rate of absorption’ or as a percentage.
(1) The loss of energy in traveling through a medium. Examples: A yellow filter absorbs all wavelengths except yellow just as red paint will absorb all colors except red which is reflected.(2) The internal taking up of one material by another.(3) Transformation of radiant energy into other forms of energy when passing through a material substance.
The process by which light transfers its energy to matter. For example, a gas cloud can absorb starlight that passes through it. After the starlight passes through the cloud, dark lines called absorption lines appear in the star's continuous spectrum at wavelengths corresponding to the light-absorbing elements.
the filling of pores in a solid. aactivated sludge units - a feed enters an uniform aeration zone of air bubbles adn liquid that are in good contact
(ahb-SORB-shun) The passage of digested foods from the digestive tract and into the bloodstream.
Retention of liquids in the bulk of the fabric where the liquid is retained by filling up of void spaces, i.e. pores of the fiber, between fibers in a yarn and between yarns in the fabric.
The tendency of sound waves to be soaked up by soft surfaces. Opposite: reflection.
Percentage of moisture absorbed by weight after immersion in water.
The process by which a liquid or a gas is taken into the intersticies of a porous substance and held there.
The uptake of substances by an organism across membranes (e.g., cell wall, gill, intestine).
particles of one substance are completely taken in by another substance; a sponge absorbs water. Compare with adsorption.
A process by which a material (the absorbent) extracts one or more substances (absorbates) from a liquid or gaseous medium that it is in contact with and changes chemically, physically, or both. The process is accompanied by a change in entropy which makes it a useful mechanism for a refrigeration cycle. Water-lithium bromine and ammonia-water chillers are examples of absorption chillers.
The process by which radiation transfers some, or all, of its energy to the medium through which it is passing.
The entry of a drug substance into the bloodstream from the site of administration.
The uptake of water or dissolved chemicals by a cell or an organism. The movement of a chemical into or across a tissue.
The penetration of a substance into the inner structure of a solid or liquid where it is held in place by surface tension effects and is readily displaced.
The process of one substance entering into the inner structure of another.
Occurs when light is absorbed by a surface it hits and gets converted into heat waves.
The dissipation of light within a surface or medium.
The properties of a material composition to convert sound energy into heat thereby reducing the amount of sound energy that can be reflected.
In an antenna, the process within a poorly conducting material in which RF energy is absorbed and converted to heat energy.
The traversal of nutrients from the small intestine through the cells lining the small intestine and subsequently into the blood vessels. It includes the process within the small intestine of breakdown of ingested food into fats, proteins (amino acids) and carbohydrates. Specific areas of the small intestine then absorb these nutrients through the cell walls.
The physical integration of a liquid into the pore spaces of a solid, such as water being absorbed into a sponge.
Process of active or passive transport of a substance into an organism: in the case of a mammal, such as a human being, this is usually through the lungs, gastrointestinal tract, or skin.
The process by which chemicals in gaseous, liquid or solid phases are incorporated into and included within another gas, liquid, or solid chemical. For example, filter media (e.g., sponges) trap unwanted molecules by absorption.
the process by which nutrients from food move from the small intestine into the cells in the body.
That portion of total incident radiation that is absorbed by the glass and subsequently re-radiated either outside or inside.
the phenomenon by which radiation imparts some or all of its energy to any material through which it passes.
the ability of a material to accept within its body quantities of gases or liquid, such as moisture.
The property which causes substrate to take up liquids or vapours that come into contact with it.
A process in which Quid molecules are taken up by a liquid or solid and distributed throughout the body of that liquid or solid. Compare with adsorption..
Refers to a measure of the amount of light absorbed by an object, instead of being reflected. Dark colored and matte surfaces are least likely to reflect light.
The process by which one substance is physically taken into and included with another substance.
Reduction of acoustical energy usually by converting it into heat via friction using soft, fibrous materials.
Problematic water(odor etc.) that is treated by penetrating into a substance that is layered in a filter (most often carbon) that absorbs odor. Absorption filters do not require backwashing and have to be serviced periodically by the homeowner to refresh the media.
the passage of nutrients in food from the small intestine into the cells in the body.
The process of taking in, as when a sponge takes up water. Chemicals can be absorbed through the skin into the bloodstream and then transported to other organs. Chemicals can also be absorbed into the bloodstream after breathing or swallowing.
The taking up of fluids or other substances.
Uptake of nutrients from the soil by plant roots, or directly into the leaves from foliar sprays.
The process by which one substance istaken into and included within another substance,such as the absorption of water by soil or nutrientsby plants.
The properties within paper that cause it to absorb liquids (inks, water, etc.) which come in contact with it.
the way substances pass into tissue as nutrients from food move from the small intestine into the cells of the body.
The passing of a substance or force into the body of another substance.
The extraction of one or more components from a mixture of gases when gases and liquids are brought into contact. The assimilation or extraction process causes (or is accompanied by) a physical or chemical change, or both, in the sorbent material. Compare ADSORPTION.
The light energy (wavelengths) not reflected by an object or substance. The color of a substance depends on the wavelength reflected.
Process of drawing a fluid or gas into a porous material, such as a sponge soaking up water. Masonry absorption is the weight of water that can be absorbed by a brick immersed in water.
The incorporation of one substance into or through another of a different state (e.g., liquids in solids, gases in liquids). Unless it is certain that absorption is occurring, as opposed to adsorption, the term sorption should be used.
Dissipation of radio or sound waves as they interact with matter. The absorbing of light waves without reflection or refraction.
When a material reduces the energy of sound reflected off it. By absorbing sound energy, the volume of the reflected sound is reduced.
Process for separating mixtures into their constituents, by taking advantage of the fact that some components are more readily absorbed than others.
The consumption of alcohol from outside the body into the bloodstream. Peak absorption is the highest level of blood alcohol; seen before BAC begins to diminish.
In paper, the property that causes it to take up liquids or vapors in contact with it. In optics, the partial suppression of light through a transparent or translucent material.
The way alcohol enters the bloodstream. Alcohol is absorbed into the blood through the stomach and small intestine.
In the transmission of electrical, electromagnetic, or acoustic signals, the conversion of the transmitted energy into another form, usually thermal. Note 1: Absorption is one cause of signal attenuation. Note 2: The conversion takes place as a result of interaction between the incident energy and the material medium, at the molecular or atomic level.
the process by which light falling on a surface is partially absorbed by the surface.
reversible or irreversible transfer of energy from an electromagnetic field to tissue.
The process where the nutrients are assimilated into the body (from the digestive tract to the bloodstream).
The process of taking in. For a person or an animal, absorption is the process of a substance getting into the body through the eyes, skin, stomach, intestines, or lungs.
Dissipation or loss of electromagnetic energy in passing through a material substance.
The amount of reflection as sound strikes a surface. In the classroom, a carpeted floor absorbs more sound than a hard, tile floor, and thus, numerically, the covered floor has a higher absorption rate than a hard-surfaced area.
The process of an agent being taken in by a surface (clothing, fabrics, wood, etc.,) much like a sponge and water. A route of exposure. It occurs when a toxic material contacts the skin, and then enters the bloodstream by passing through the skin.
As radiation passes through a substance or tissue it gradually loses energy and is absorbed. Alpha and beta rays are more easily absorbed than gamma rays.
uptake of a material (drug for example) from the stomach or intestine into the bloodstream
absorb; absorbent. Compare with adsorption and sorption. Penetration of molecules into the bulk of a solid or liquid, forming either a solution or compound. Absorption can be a chemical process (a strong solution of NaOH absorbs CO2 from the air) or a physical process (palladium absorbs hydrogen gas). Capture and transformation of energy by a substance; for example, copper looks reddish because it absorbs blue light. An absorbent captures another material and distributes it throughout; an adsorbent captures another material and distributes it on its surface only.
Absorption occurs when light heats what it falls on, instead of being reflected or transmitted. Depending on the material, certain wavelengths will be absorbed, and others reflected or transmitted. Use the "back" button to return to the lesson.
The movement of a substance from the site of administration into the bloodstream.
The process by which a liquid penetrates the solid structure of the absorbent's fibres, which then swell in size to accommodate the liquid. The process of a fluid being taken into the pores of a solid.
The process of taking up a substance into the physical structure of a liquid or solid by physical or chemical action, but without any chemical reaction taking place.
(Light) (extended definition) Decrease in directional transmittance of incident radiation (such as light), resulting in a modification or conversion of the absorbed energy, into heat, for example. Light incident on a specimen may be partially reflected, partially transmitted, or partially absorbed.
The process by which water is absorbed. The amount of water absorbed under specific conditions, usually expressed as percentage of the dry weight of the material.
A process by which radiation is converted to other types of energy (especially heat) by a material. Reduction in strength of an electromagnetic wave propagating through a medium.
The uptake of a gas by a solid or liquid, or the uptake of a liquid by a solid. The absorbed surface permeates the bulk of the absorbing substance. A basic example may be the uptake of water into a sponge.
To take up a substance into or throughout a material or fabric by physical or chemical means. A particular piece of protective clothing may act more like a sponge and absorb certain liquids rather than act as an effective barrier. Important also--- some chemicals may be "absorbed" through human skin. Go to top
the process by which light, heat, sound, etc is held back by a substance as opposed to passing through (transmitted) or being returned (reflected)
n. The act or process of absorbing.
The process of taking up one substance into the body of another, such as a sponge absorbing water.
The penetration of one substance into or through another. Specifically, the penetration of a substance into the body from the skin, lungs, or digestive tract. [S. L. Brown
If the intensity of light is reduced when it passes through matter, we speak of absorption. Matter absorbs, i.e. takes up, the energy. Since blue cells absorb more light than red, yellow or green cells, almost all solar cells are blue.
the process of retaining incident radiant energy in a substance
This is the movement of food into the bloodstream.
The loss of light of certain wavelengths as it passes through a material and is converted to heat or other forms of energy.
The weight of water a brick unit absorbs, when immersed in water for a stated length of time, expressed as a percentage of the weight of the dry unit. See ASTM Specification C 67.
The taking up of energy from the medium through which it passes.
The process in which incident radiation is retained by a substance. A further process always results from absorption.
a process in which one substance permeates another; a fluid permeates or is dissolved by a liquid or solid.
The physical uptake of water and any material dissolved in it.
The extent a substance reduces the amount of light passing through or reflecting from it.
The chemical process by which a hygroscopic desiccant, having a high affinity with water, melts and becomes a liquid by absorbing the condensed moisture.
The penetration of one substance into the mass of another. ....
The assimilation of one material into another; in petroleum refining, the use of an absorptive liquid to selectively remove components from a process stream.
the process of taking in radiant energy
The action or quality of surfaces to soak up rather than reflect sound waves.
the process by which incident light is removed from the atmosphere and retained by a particle.
The act or process of retaining foreign particles such as gas or liquid without transmission of these particles.
The process involving the penetration of a gas or vapor beyond the surface of a solid or liquid, usually by some kind of diffusion and its subsequent binding or capture.
In optics, it is the property which causes the partial suppression of light through a transparent or translucent material. In paper, the ability to take up liquids (ink and water) in contact with it. In filters, the ability to absorb part of the spectrum of white light and transmit or absorb other parts of the spectrum.
The property that causes paper to take up liquids or vapors that come into contact with it. In optics, absorption is the partial suppression of light through a transparent or translucent material.
The physical uptake of water and/or ions by a substance. For example, soils absorb water.
the process, in which incident radiated energy is retained by the medium without being reflected or transmitted on passing through a medium.
Uptake. In the biomedical sciences, absorption has diverse specific meanings. See the entire definition of Absorption
Occurs when light is partially or completely absorbed by a surface, converting its energy to heat. Slow shutter speed resulted in an ABSTRACT image of a dance performance.
The dissipation of sound energy at a surface as the sound... ( more)
The penetration of atoms, ions, or molecules into the bulk mass of a substance.
The process in which incident radiant energy is retained by a substance. The absorbed radiation is then transformed into molecular energy.
Process by which digested food is absorbed by the lower part of the small intestine into the bloodstream
The dissipation of sound energy by losses due to sound absorbent materials.
A surface is absorbent when it absorbs or takes into itself and holds the coating applied over it. Primers or Sealers are used to reduce the absorbency of a surface, thus ensuring a more uniform finish.
The uptake of one substance into the structure or matrix of another substance. For instance, fiber gets thick and gelatinous and absorbs waste material as it passes through the colon.
The ability of matter to absorb light energy impingent on it. This light energy is converted into heat, or in the case of plant matter, it is converted into photosynthetic energy or secondary energy processes such as fluorescence emission. The net light lost from an incident beam of light is referred to by the absorption coefficient or absorbance. The amount of light absorbed by materials in the water depends on the materials themselves and the wavelength of light incident upon them. By varying the wavelength of light, one can deduce information relating to specific material in the water. This is a basic principle behind spectrophotometry.
The increase in weight of a porous solid body resulting from the penetration of a liquid into its permeable pores usually measured as a percentage of dry weight or in pounds per cubic foot.
The process by which incident radiant energy is retained by a material due to the material's physical composition.
The property which causes paper to take up liquids or vapors in contact with it.
The digestibility of a dietary supplement into the bloodstream (similar to bioavailability).
is the degree of moisture that will soak into plaster when casting, or into bisque when glazing or decorating with nonfired colors.
Is the process by which one substance is taken into another substance. For example as water is taken up by a sponge.
Refers to loss of light energy conducted along an optical fiber, due to natural impurities in the fiber material. Absorption and scattering are the main cause of attenuation (signal loss) in an optical fiber.
The physiological process where nutrients are assimilated into the bloodstream from the digestive tract. (See Malabsorption).
The process by which nutrients are passed through the intestinal tract into the bloodstream to be used by the body. If nutrients are not properly absorbed nutritional deficiencies can result.
The state of one substance being taken up by another; for example a sponge absorbs water.
the process by which sound energy is converted into heat
Penetration of a substance from the surface to below the surface.
The process of taking in, as when a sponge takes up water. Chemicals can be absorbed through the skin into the blood stream and then transported to other organs. Chemicals also can be absorbed into the blood after they are breathed in or swallowed.
The process by which elements move from outside of the body into the blood and other tissues. Food is absorbed through the stomach and intestines. When tobacco is smoked, nicotine is absorbed through the lungs.
Ability to take in or assimilate gases, liquids and other matter into a structure.
The attenuation (or reduction) of sound level that results when sound is controlled by a sound absorptive material such as glass fiber or open-cell urethane foam. In the case of sound absorptive, attenuation of sound is produced by the conversion of molecular motion, into thermal energy due to friction of air molecules with fibrous or cellular materials.
The entry of a chemical or nutrient into the plant.
The level at which insulin is taken in the bloodstream.
uptake of a substance into the body or a tissue through skin or mucous membrane
(gen.) The taking in, incorporation or reception of gases, liquids, light or heat.(phys/chem) Penetration of one substance into the inner structure of another (cf. adsorption, in which one substance is attracted and held on the surface of another). Occurs between a gas or vapor and a liquid.(pharm.) The process of movement of a drug from the site of application into the extracellular compartment of the body.
The taking up of liquids.
A process whereby a material extracts one or more substances present in an atmosphere or mixture of gases or liquids accompanied by the material's physical and/or chemical changes.
In acoustical absorption, sound energy is converted into heat. See: Resistive Absorbers, Diaphragmatic Absorbers, Resonant Absorbers, Absorption Coefficient, Sabine.
Absorption is the process by which a substance enters the body and moves into the bloodstream and lymphatic system
The process by which a substance can be readily taken into a body. For instance, some chemicals can be absorbed through unbroken skin.
Getting substance from the skin.
When the substance of interest is captured by another substance, reducing the amount available. For examble, solar energy is absorbed by some atmospheric molecules, solar collectors, and the ocean.
The active or passive uptake of gases, fluids, or solutes.
The uptake of water, other fluids, or dissolved chemicals by a cell or an organism (as tree roots absorb dissolved nutrients in soil.)
the process by which radiant energy is absorbed and converted into other forms of energy
The taking in of water and dissolved minerals and nutrients across cell membranes. Contrast with ingestion.
The physical attraction and incorporation of a substance (liquid, gas, or vapor) into a material's interior.
The process of one substance actually penetrating into the structure of another substance.
Describes the process by which RF energy penetrates a material or substance and gets converted to heat. RF energy of the appropriate frequency will experience severe absorption when it encounters rain.
The capacity of a material to soak up liquid.
The movement or passage of substances into or across tissues in the body, such as the movement of nutrients from the digestive tract into the bloodstream.
Definition: When a solid takes up molecules into its structure.
process whereby soluble nutrient pass through the intestinal wall into the blood or lymphatic circulation.
loss due to energy conversion as light passes through a material.
The process by which gases or vapors are taken up by fluids or solid bodies, such as lubricants or bearing materials.
Inclusion of gases or vapours by fluids or solid bodies, for example lubricants or bearing materials.
The passage of substances through body surfaces into tissues or body fluids. e.g. water is absorbed in the colon.
The dissipation of a light within the surface or medium; A process by which incident radiant flux is then converted to another form of energy, usually (and ultimately) heat.
(Office market) Refers to the integration of space into the market. Space that has been leased or occupied is absorbed (positively). Absorption applies only to existing buildings, thus pre-lease activity is not accounted for in absorption statistics. Only immediately available space is unabsorbed, thus sublet space is not counted in statistics. Absorption represents a change in space status over time from non-existing to existing and available; leased and unavailable to available; and available to not available. For net absorption, see Net Absorption. (CoStar)
To take in substances through the skin or mucous membranes.
Process by which nutrients are absorbed through the lining of the intestinal tract into capillaries and into the bloodstream. Nutrients must be absorbed to affect the body.
Penetration of one substance into another; also, the uptake of chemicals by plants through leaves, stems, roots, flowers or fruit.
Absorption, in chemistry, is a physical or chemical phenomenon or a process in which atoms, molecules, or ions enter some bulk phase - gas, liquid or solid material. This is a different process from adsorption, since the molecules are taken up by the volume, not by surface. A more general term is sorption which covers adsorption, absorption, and ion exchange.
In physics, absorption is the process by which the energy of a photon is taken up by another entity, for example, by an atom whose valence electrons make transition between two electronic energy levels. The photon is destroyed in the process. The absorbed energy may be re-emitted as radiant energy or transformed into heat energy.
Absorption refers to the absorption of sound waves by a material. The Absorption is the "missing piece", when comparing the total reflected and transmitted energy with the incident energy.
In pharmacology (and more specifically pharmacokinetics), absorption is the movement of a drug into the bloodstream.
Absorption is a route by which substances can enter the body through the skin. Along with inhalation, ingestion and injection, dermal absorption is a route of exposure for toxic substances and route of administration for medication. Absorption of substances through the skin depends on a number of factors, the most important of which are concentration, duration of contact, solubility, physical condition of the skin and part of the body exposed.