Depletion of snow and ice by melting and evaporation.
Removal of diseased or unwanted tissue from the body by surgery or other means.
The removal of ice at the toe of a glacier by melting, sublimation (the evaporation of ice into water vapor), and/or calving.
1. All processes that remove snow, ice, or water from a glacier, snowfield, etc.; in this sense, the opposite of accumulation. These processes include melting, evaporation, calving, wind erosion, and an avalanche. Air temperature is the dominant factor in controlling ablation, precipitation amounts exercising only secondary control. During the ablation season (usually summer), an ablation rate of about 2 mm h−1 is typical of glaciers in a temperate climate. 2. The amount of snow or ice removed by the above-described processes; in this sense, the opposite of accumulation.
The removal of tissue with a vacuum or scalpel, sometimes used as a research technique (allowing investigators to ask how an organism functions in the absence of this tissue).
The annual amount of ice and snow lost from a glacier by the processes of melting, sublimation, wind erosion, and iceberg calving.
The removal of mass from a glacier by the processes of surface melting, evaporation, and iceberg calving.
Separation and removal of rock material and formation of deposits, especially by wind action or the washing away of loose and soluble materials.
Ablate, in surgery means "to remove." So, ablation is the fact or state of being removed
A laser process where one layer of material is removed to expose a second, dissimilar material. For example, marking on anodized aluminum works this way.
All processes by which snow and ice are lost from a glacier, floating ice, or snow cover; or the amount which is melted. These processes include melting, evaporation, (sublimation), wind erosion, and calving. Synonym: wastage.
Removal of tissue by vapourisation (in this case by the Excimer laser).
The loss of mass from snow or ice, most commonly by melt but also by sublimation or scour.
Removal of tissue with the excimer laser
the erosive process that reduces the size of glaciers
Destruction by means of X-rays or laser beam.
Loss of material from the surface of a meteoroid being heated by friction as it passes through an atmosphere.
the process of being removed. Snow ablation usually refers to removal by melting
loss through vaporization or melting.
removal of a layer of material. Ablation of tissue with a laser is a rich field of its own. We will have a section on ablation in the future, right now we only have a sequence of pictures of a water surface that is hit with a short laser pulse so that a plume of ablated water forms.
The process by which heat is removed from a reentry body through the melting, vaporizing and scouring off of special materials as the body is heated by friction with the atmosphere.
The vaporisation of the surface layers of a body entering the atmosphere as a consequence of the heating that results from the compression of air ahead of it.
The removal of tissue, abnormal growth, a tumor, by an electrode or other mechanical means.
(1) The process by which ice and snow waste away as a result of melting and/or evaporation. (2) The erosive processes by which a glacier is reduced.
Refers to removal of a small area of abnormal heart tissue which is thought to be the origin of rhythm abnormalities.
The removal or erosion of a surface due to thermal or mechanical stress. A phenomena encountered in the chamber of a thermal impulse (bubble jet) system. The rapid frequent collapse of the micro bubbles formed during the heating process causes a breakdown of the surface of the chamber leading to cavitation and resultant pitting of the chamber surface.
The atmospheric deterioration of the lens surface of a weapon's sensors.
Removal. In excimer laser surgery, a frequency of energy causes corneal molecules to detach from one another from their points of attachment.
the removal of a material by adding heat and turning it to vapor, such as laser ablation
Ablate means ‘to remove’. Ablation is the act of removing.
The direct evaporation of snow and ice without a liquid phase.
Removal or destruction of a part by surgery, laser beams, or drugs. (L. ab=from, latus= carried)
The removal of material in industrial laser cutting, or tissue in medical laser cutting, by melting, evaporation, or vaporization. See Vaporization.
Removal or excision. Ablation is usually carried out surgically. For example, surgical removal of the thyroid gland (a total thyroidectomy) is ablation of the thyroid. The word ablation comes from the Latin ablatum meaning to carry away. See the entire definition of Ablation
Removal or excision of part of the body.
removal or destruction of a body part.
Surgical removal of a body part or tissue
Loss of ice in a glacier or ice sheet from melting, sublimation, or calving of bergs into a body of water.
Removal of corneal tissue to reshape the cornea to correct vision problems using a laser.
The vaporization of tissue with the excimer laser.
The process by which ice and snow waste away owing to melting and evaporation.
A surgical technique that uses one of a variety of methods (laser, heat or freezing) to remove the endometrial lining of the uterus.
The removal of surface material from a body by vaporization, melting chipping, or other erosive process; specifically, the intentional removal of surface matter from a reentry body during high-speed movement through a planetary atmosphere to protect the remaining body from the heat generated by friction.
removal or separation of tissues
The process of removing tissue by applying energy pulses from the excimer laser onto the surface of the cornea, thus reshaping the focusing surface of the eye. ALGORYTHM: Formula used by the computer manufacturers to control the pattern delivered by the laser to reshape the cornea. ASTIGMATIC KERATOTOMY: A procedure used to reduce astigmatism by placing small incisions, by hand, in the cornea. ASTIGMATISM: A condition in which the cornea is "out of round". The surface is not spherical like the surface of a standard ball but more angular like the surface of a football.
Removal or separation of something.
All processes that that remove snow or ice from a glacier or snowfield.
A technique for the imaging of offset plates, by which a thermal erosion layer is removed. The printing plates then only require mechanical treatment and in some cases can be rinsed with water. The main disadvantage of this system is that it produces debris which must be removed from the CtP system.
Removal or destruction of tissue.
The sun can directly vaporize snow into water vapor through the process called ablation.
Removal of a part by melting or vaporization.
Loss of a part (e.g. ice from the Arctic ice pack) by melting.
Technique achieved with excimer laser in which tissue is removed from the central optical zone with the intent of reshaping the cornea's curvature; usually for correcting nearsightedness.
The removal of material from the surface of an object by erosive processes such as vaporization or chipping. In rocketry, ablation occurs on rocket motor nozzles during the motor burn and on heatshields during the atmospheric reentry of space vehicles. Ablation is the primary reason reloadable motor designs call for interchangeable nozzles.
removal of material by attrition, e.g., by passage through the atmosphere.
Surgical removal of eye tissue to correct a refractive error
Detachment or removal, as of an organ or part, especially by surgery. Also, destruction of function, as by a chemical.
refers to all processes by which snow, ice, or water in any form are lost from a glacier - the loss of snow or ice by evaporation and melting. Ablation Area is the lower region of a glacier where snow ablation exceeds snowfall. Accumulation Area is the upper region of a glacier where snow accumulation exceeds melting.
The erosion of a solid body by a high-temperature gas stream moving with high velocity, e.g. a reentry vehicle's heat shield which melts or chars under the effects of air friction.
the process of wastage of snow or ice, especially by melting
Ablation is defined as the removal of material from the surface of an object by vaporization, chipping, or other erosive processes. The term occurs in space physics associated with atmospheric reentry, in glaciology, medicine and passive fire protection.