The degree to which an object blocks light. Technically, opacity is expressed as a ratio of the incident light to the transmitted light.

A quantity that measures a material's ability to block electromagnetic radiation. Opacity is the opposite of transparency.

Quality of plex that defines its opaqueness or ability to prevent light from showing through.

The measure of how opaque or see-through a graphic or a piece of paper is. The more fibers or fillers in a paper, the more opaque (less see-through) it will be. Thinner papers can be made more opaque with opacifying thickeners. Graphics opacity is controlled in a graphics program when layering images on top of each other.

A material property that prevents light from passing through the object. [KAU91

A characteristic of painting and other tools within image editing software. By adjusting opacity to a percentage of less than 100%, the user can paint a color onto an image and allow some of the image beneath to show through. (Paint with transparent paint versus opaque paint.) This same characteristic is available while performing image assembly steps and allows one image to be transparently floated in front of or behind another.

Measure of the degree to which paper transmits light

the property of paper that minimizes the ability to see show through (printing on underlying sheets) or print through (print on the back side of the sheet)

The property of a sheet which prevents print areas from showing through the paper to the other side. For the explanation of the test to determine the opacity of paper see Chapter 6.

The quality or state of a body that makes it impervious to the rays of light. Used to determine quality of emission from locomotives.

The property of paper that refers to how much it can block the ink from showing through

The ability for paper to minimize the show-through of material printed on its other side, or to the next sheet.

The capacity of paper to stop light and prevent show-through of printing. A numerical rating is used to specify opacity, with 83 being low and 94 high for uncoated paper used by Ripon and most non-heatset printers.

Refers to how much the printed image on one side of a sheet will show through to the other side. The more opaque a sheet the less image will show through.

the degree that an image "shows through" to the other side of the paper.

The amount of "show-through" from one sheet to another. Also the show-through of an ink.

Covering power of paint.

Measurement of the amount of light that does not pass through a film or filter.

a property of matter that prevents light from passing through it; non-transparent. The opacity or opaqueness of something depends on the frequency of the light. For instance, the atmosphere of Venus is transparent to ultra-violet light, but is opaque to visual light.

Ability of a coating film to prevent the transmission of light and therefore to obliterate or hide the color of the surface to which it is applied.

The degree of obscuration of light; for example, a glass window has almost 0% opacity, whereas a concrete wall has 100% opacity.

The degree to which a paper is translucent.

Paper quality which prevents type or images printed on one side from showing on the other side. Also refers to the covering power of an ink.

the quality of not being penetrable by light (the quality of being opaque).

The degree of a paper's resistance to light. Paper printed on both sides must have optimum opacity, a property enhanced by a higher wood content as well as fillers such as kaolin, talcum and titanium dioxide.

The lack of complete transparency of a gas.

Property of paper that minimises the "show-through" of printing from the back side or the next sheet. A paper with low opacity is more transparent.

Opacity is the percentage of light which is reflected from the paper surface. The greater the value, the more opaque the material, therefore reducing the degree of show-through. The instrument used is the ‘Technidyne’. The results are expressed as a percentage.

The ability of a paint to hide the previous surface.

The amount that an object is transparent. The opacity in AVS/Express is controlled in the object menu. An opacity of zero means the object is completely transparent.

A measure of the property that prevents print from the other side from showing through the sheet.

Opacity is a quality of paper which minimizes the show-through of printing on the backside of the sheet.

Term used to describe how transparent a sheet of paper is.

The range between semi-transparent and opaque.

The ability of a sheet of paper to prevent light transmission through it. Opacity prevents print that is on one side of a sheet of paper from showing through to the other side.

The degree of no-transparency or the relative opaqueness of a given paper.

Reduction in the intensity of light as it passes through the layers of a medium (in stars through the gaseous layers).

The degree of obstruction to the transmission of visible rays. Used in connection with paint.

The relative capacity of a coating material to obstruct the transmission of light.

An IRIS Showcase setting that determines whether objects are opaque or see-through.

The property of paper that minimizes the "showthrough" of printing from the other side.

The degree of obliteration of a substrate.

This is the property of a substrate material that minimizes show-through from the backside or the next sheet. This is the percentage of reflectance with a black backing to the reflectance with a white backing. Ink opacity is the property of ink that prevents the substrate from showing through.

a measure of a material's ability to absorb or block photons. A material with high opacity prevents most of the photons from passing through (the material is opaque).

The quality of being impenetrable by light.

The density of an image, color or tonal value. Also the measure of transparency of type or an image.

Opacity determines the amount of "show through" of printed matter on the reverse side of the paper and the sheet's hiding power of printing or any dark material on an adjacent sheet. As basis weights are reduced, it becomes increasingly difficult and costly to maintain sufficient opacity. The higher the opacity reading, the more opaque the sheet.

Denotes the degree to which the system's functionality is not able to be perceived from its interface . Opacity is a special problem for many informational systems (as compared to mechanical systems). The software oscilloscope BoeckerFischerNieper1986 is an effort to overcome the opacity of sytems.

incomprehensibility resulting from obscurity of meaning

the quality of being opaque to a degree; the degree to which something reduces the passage of light

A rating of exceptionality, the degree to which a surface structure is removed from its deep structure.

Not being see-through, or degree of model's transparency

The amount of bleed-through of a piece of paper.

Hiding power of pigmented (mostly white) plastic films. It is beneficial for packing materials sensitive to light (visible or ultraviolet).

determines how opaque (see-thru) the selection is. A higher setting is more difficult to see thru, while a lower settins is easier to see thru. Tutorial

The ability of a coat of paint to obscure (or cover) an underlying surface.

quality of a paper related to the amount of light that can be transmitted through its surface.

The level of opaqueness in a sheet of paper, important when trying to avoid show-through.

The extent to which a paper is capable of obscuring matter printed on the other side or on an underlying page. A paper with good opacity is one on which the printing on one side cannot be seen from the other under normal conditions. Usually expressed as a percentage (%).

Property which minimises "show through" of printing from the reverse side of a sheet of paper.

How well a paint covers in a single pass. High opacity paints are good base coats while low opacity paints are good for washes.

The quality or state of a body that makes it impervious to light; the relative capacity of matter to obstruct the transmission of radiant energy.

Paper property that measures degree to which paper stops light form passing through. The more opacity a paper has, the less show-through it permits of the envelope contents. Inside tints are added for increased security.

The degree to which smoke or particles emitted into the air reduce the transmission of light and obscure the view of an object in the background.

The property of paper that minimizes the "show-through" of printing from the back side or the next sheet.

Loss of clarity in something that is normally clear or transparent.

the property of reflecting light diffusely and nonselectively

The degree to which an image is transparent, allowing images behind to visually show through.

The extent to which a paper is capable of obscuring matter printed on the verso or on an underlying page or other surface.

By definition, 1/T where T is transparency.

Degree to which light passes through, not transparent.

A material's lack of transparency; for printing ink, the ability to hide or cover up the image or tone over which it is applied; for paper, the ability to prevent an image printed on one side of the sheet from showing through on the other side.

of a film. Ability to cover, or hide -- especially as in the covering of a substrate or previous coat(s).

Impenetrable by light; neither transparent nor translucent. Ink plays an important role in obtaining opacity.

1. An object that controls how graphical output appears to cover previous output. Opacity ranges from fully opaque through various levels of translucency to completely transparent. 2. A Lisp object that represents an opacity.

The ability to hold an image without it showing throught the other side of the paper.

A type of texture mapping similar to the Genlock texture map. In Opacity mapping, the polygons become transparent where the map is darkest and gradually more solid as the map increases in brightness. Can create a very interesting "ghostly" effect (or X-ray vision!) with the right texture map.

Sometimes referred to as "show-through" this term refers to the property of a sheet which prevents dark print areas from showing through the paper to the other side.

Refers to the degree with which finishing material masks the underlying substrate. For example, high opacity indicates more complete coverage.

The quality of an object that defines the ability of light to pass through it. If an object is completely opaque, light does not pass through it.

The property of paper, which makes it less transparent. Minimizes the show through of printing to the backside. Also, the ability of an ink, which prevents the transmission of light through the ink film.

There are two types of opacity: 'apparent opacity' refers to the actual opacity of the unprinted paper itself; 'printed opacity' is affected by holdout, in that the lessened opacity is actually caused by absorption of ink. As ink is absorbed into a sheet of paper the printed opacity of the page decreases, causing the image to show through on the back

The quality or ability of an ink to keep light from penetrating. To completely cover a substrate, thereby fully hiding the color of the garment underneath.

The extent of "read-through" possible from an unopened envelope to its contents or from one page of a multi-sheet package to the sheets which follow. The amount of "read-through" is determined by the type and weight (density) of the paper stock used.

The nontransparent property of paper that prevents or reduces light transmission and show-through of printing.

the degree to which ink shows through on the opposite side of printed paper.

Resistance of material to transmission of light.

The amount of light obscured by particulate pollution in the air; clear window glass has zero opacity, a brick wall is 100 percent opaque. Opacity is an indicator of changes in performance of particulate control systems.

the quality of not allowing light to pass through (the quality of being opaque).

Hiding power or the degree of obliteration.

A property of paper that minimizes the show-through of printing from the opposite side or the adjacent sheet. Opacity is greatly influenced by basis weight, brightness, type of fiber and filler.

The property of a paper that minimizes or prevents the passage of light through the sheet.

The degree to which paper prevents what is printed on one side from showing through to the other side; the greater the opacity, the less the show-through.

the measure of how opaque or see through a plastic film is. Certain pigments added to the polyethylene resin will make the plastic more opaque or less see-through.

The density of a color or shade, ranging from transparent to an opaque.

The property of paper that limits show-through of printing from opposite side or from another sheet.

The amount of "show through" in a sheet, or how much of the text and design on one side of a paper shows through on the other side.

opaqueness in eyes; can result in cataracts

A measure of the ability of light to pass through a sheet of paper. Opacity is particularly important for sheets that are printed on both sides.

The ability to keep light from passing through. A paint with a high opacity will hide the substrate well.

A measure of how opaque a paper is. The more fibers of fillers a paper has, the more opaque it is, and the less it allows 'show-through' of the printing on the back side or on the next page. Opacity isn't always determined by thickness or weight; a thinner paper may have more opacity than a thicker paper if opacifying thickeners are used.

The property of paper or poly film that minimizes the show-through of printing from the back side of the printed area.

Paper property that measures the degree to which paper stops light from passing through. The more opacity a paper has, the less show- through it permits of the envelope contents. Inside tints can be used to compensate for low- opacity papers.

Quality of a material that makes it impervious to rays of light. Opposite of sheer.

the change in a material from being transparent to being non-transparent.

The condition of lacking transparency or translucence. We cannot see through objects which are 100%% opaque. Adjusting opacity determines to what degree information is hidden or revealed below. For example, an opacity of 100%% hides all information below. An opacity of 10%% would appear almost transparent, allowing you to see through to objects below.

The property of the paper that blocks the transmission of light and the amount of ink showing through the sheet.

The amount of show-through on a printed sheet. The more opacity or the thicker the paper the less show-through. (The thicker/heavier the paper the higher the cost.)

The hiding power of a paint or coating, commonly expressed as a percentage of the coverage over black substrate divided by the coverage over white substrate. The opacity of a paint can be a good guide to how many coats it will require. Due to the pigment s used to obtain the colour, bright or clean yellows and reds will gene ral ly have the pooest opacity.

The degree to which you can see the printed image through the other side of the paper. Generally, the thicker the paper, the more opacity you have.

term used to describe the degree to which paper will show print through.

Opacity is affected by the content of the paper. In selecting the stock for your job a weight needs to be selected that doesn’t allow a distracting amount of show-through.

Quality of papers that defines its opaqueness or ability to prevent two-sided printing from showing through.

A property of paper that minimizes the show-through of printing from the opposite side or the adjacent sheet. Opacity is influenced by the paper's weight, brightness and type of fibre.

The degree to which a foil provides good coverage and the ability of the foil to conceal a dark substrate over which it is applied.

Characteristic of paper that helps prevent printing on one side from showing through to the other.

The level of transparency for a face as set in the Material Editor. Orbit

An opaque area or spot as in the lens or cornea of the eye.

That property of paper which minimizes the "show-through" of printing from the back side or the next sheet.

Ah, the glint of rosy dawn light through a fine sheet of paper… opacity is simply about how much light shines through paper. You need a lot of opacity when you're using a paper for duplex printing or for heavy-duty colour printing on one side of the sheet.

That property of paper that minimizes the "show-through" of printing from the opposite side or the next sheet.

Description of non-transparency in printing papers.

Absorbing power; capacity to impede the passage of light.

The property of paper which minimizes show through of the printed image from the opposite side of the sheet, or the sheet under it. to top

The ability of a paint film to obliterate or hide the color of the surface to which it is applied. See “Hiding”.

The property of paper which minimises ‘show through' of printing from the backside of the next sheet.

The degree to which paper will allow characters printed on one side to show through to the other side. Opacity is not always determined by thickness or weight of a sheet, but by the amount and type of fibers and fillers used to minimize show through to the other side.

The extent to which light transmission is obstructed, or the degree of show through. ARCHMENT: A high wet-strength, greaseproof paper made by passing paper through a sulfuric acid bath.

(1) State or quality of being opaque. (2) The degree to which a substance is or may be opaque. (3) The proportion of the light that is absorbed by the emulsion on any given area of the negative.

The amount of "show through" in a sheet from one side to the other. The higher the opacity the less likely that the printing on one side will be visible from the other side.

Opacity tells you how much light shines through the paper. High opacity is essential when a paper is intended for duplex printing, or for intensive colour printing on one side of the sheet.

The light stopping power of a a material. The greater the opacity of a substance, the more light its stops.

Degree of impermeability of layer of color to the light. Opacity is calculated by dividing the intensity of the light projected by the volume of light which the original document reflects or lets cross.

The ability of a coating to hide or obliterate the substrate. Film thickness increases opacity, but performance and economics may demand high opacity at relatively low film thickness', such as in litho or gravure inks. Pigments are key to opacity, with different pigments offering different degrees of opacity, by virtue of their different light refracting (bending of light beams as they pass into or out of pigment particles) or light absorbing powers, but different media will also have some effect.

Denotes how much or little of the painting surface will show thru a layer of paint. True pigments tend to be more opaque, where Hues tend to be more translucent.

() Characteristic of paper or other substrate that prevents printing on one side from showing through the other side. () Characteristic of ink that prevents the substrate from showing through.

The amount of transparency when combining a fill color, painted color, floating selection, pattern, or layer with another layer or background.

The density of a colour or shade, ranging from transparent to opaque. In PhotoShop, you can choose an opacity for a tool or a layer.

Refers to how transparent or translucent a wallpaper is. If the opacity is poor, it usually means the wallpaper is a light color or does not have an intermediate layer between the decorative surface and the substrate. Primer-sealers that contain titanium dioxide will help prevent show-through from existing wall conditions.

The degree of obstruction to the transmission of visible light.

the characteristic of an object that prevents light from passing through. The opposite of translucent. Opaque objects are easy to detect since they block light almost entirely.

The quality of opaqueness in a paper. Opacity is measured in %, with around 90% being an average for 80g/m2 printing paper.

Measurement of the resistance to light passing through a substrate, on a scale of 0-100%, indicting the propensity fro show-through of underlying type or images. This is computed by measuring the density of the substrate over a black background and over a white background.

The degree of obstruction of the transmission of visible light. Another expression for "HIDING POWER."

The degree of show through or transparency of the paper, i.e. an envelope with good opacity will not show the contents enclosed.

the property of being opaque

The property of a substrate material that minimizes show-through from the back side or the next sheet. The ratio of the reflectance with a black backing to the reflectance with a white backing. Ink opacity is the property of an ink that prevents the substrate from showing through.

The property of a substance that hinders(by absorption or scattering) light passing throughit; opposite of transparency.

Describes the resistance of light passing through a substrate.

Property of a sheet of paper that minimizes the show-through of printing from the reverse side or from the next sheet.

That property of a paper or film which prevents "show through" of dark printing on or in contact with the backside of the sheet. This is opposite of transparency.

Ability of a paint to hide the previous surface or color.

Property of a paper which prevents "show-through" of printing from one side of sheet to the other.

Opacity is a degree measuring the amount to which solid material blocks view and light.

Refers to the show-through of printing from the back side or next sheet of paper.

Measure of the percentage of light passage through a sheet of paper. The more opaque a paper is, the less show-through there will be from printing on the sheet below. Basis weight, brightness, type of fibers, fillers, coatings, and formation all influence opacity. Generally, opacity and brightness are inversely related to each other: the brighter the paper, the less opaque. Other factors that affect opacity are bulk, surface smoothness, and shade.

The capacity of matter to block the passage of light or other radiant energy such as heat.

A property of paper that prevent light transmission through it. Opacity prevents print that is on one side of a sheet of paper from showing through to the other side. Opacity is greatly influenced by basis weight, brightness, type of fiber and filler.

The capacity to obstruct the transmission of radiant energy such as heat.

The measure of the amount of light that can pass through a material. Also, the property of a film that prevents "show through" of dark printing or marks on a substrate (media). "Hiding power"

Opaque spot on an x-ray stemming from a body's relative ability to block the transmission of radiant energy.

The quality that defines how much light passes through an object's pixels. If an object is 100 percent opaque, no light passes through it.

The degree to which paint cover what is underneath. Often expressed in only four grades - transparent, semi-transparent, semi-opaque and opaque - it varies widely by pigment and by manufacturer. Opacity is directly related to pigment load and the natural attributes of the pigment or pigments used.

Quality of paper that prevents printing from showing through

The degree of non-transparency in paper.

The degree to which light is prevented from passing through an object or a substance. Opacity is the opposite of transparency. As an object's opacity increases, the amount of light passing through it decreases. Glass, for example, is transparent and most clouds are opaque.

The term used to describe the quality or degree of transparency.

Reciprocal of transmissions; ability to absorb light.

The level of transmissibility of light through a material. It refers to the ability to read markings covered by conformal coating or solder mask material on a PCA.

A property of paper or other substrate that minimizes show-through, which is the amount of ink printed on one side of a sheet that shows through the other side.

Opacity is the state of being impenetrable to light. An opaque object is neither transparent (allowing all light to pass through) nor translucent (allowing some light to pass through).

Opacity is a measurement, on a percentage scale, of how much light is blocked by the particles in the exhaust plume. Light smoke has a lower opacity than dark smoke. AirCare inspection centres measure the opacity of diesel vehicles using the D147 test procedure. See also Causes of Excess Opacity.

Applied to a smokestack, it is a gauge of the amount of moisture, vapor, and/or particulate matter being emitted. The higher the opacity, the more visible the stack emissions.

Refers to the amount of light that can pass through. Normally refers to the degree of visibility of an exhaust plume. Normal measurement technique used is by EPA method 9.