Opacity (Meaning of)

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Opacity
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.)
Found op http://www.printusa.com/glos.htm
opacity
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.
Found op http://skyview.gsfc.nasa.gov/help/dictionary.html
Opacity
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.
Found op http://www.epa.gov/OCEPAterms/
opacity
The degree of obscuration of light; for example, a glass window has almost 0% opacity, whereas a concrete wall has 100% opacity.
Found op http://cdiac.ornl.gov/glossary.html
Opacity
The optical property of a substrate material that minimises show-through from the background 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.
Found op http://www.encyclo.co.uk/visitor-contributions.php
opacity
[n] - the phenomenon of not permitting the passage of electromagnetic radiation 2. [n] - incomprehensibility resulting from obscurity of meaning 3. [n] - the quality of being opaque to a degree
Found op http://www.webdictionary.co.uk/definition.php?query=opacity
Opacity
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 paint can be a good guide to how many coats it will require. Due to the pigments used to obtain the colour, bright or clean yel...
Found op http://www.hobbyshed.co.uk/model_kit_modelmaking_guides_glossary_mnop.htm
Opacity
The ability of a paint film when applied at a given thickness to obliterate the substrate or previous coat from view.
Found op http://www.encyclo.co.uk/visitor-contributions.php
Opacity
1. Characteristic of paper or other substrate that prevents printing on one side from showing through the other side.
Found op http://www.tso.co.uk/solutions/publishingsolutions/printproduction/printglo
Opacity
The condition of being non-transparent.
Found op http://www.diracdelta.co.uk/science/source/o/p/opacity/source.html
Opacity
A measure of how opaque a paper is. The more fibers or 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...
Found op http://www.encyclo.co.uk/local/20829
opacity
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.
Found op http://www.ami.ac.uk/courses/topics/0100_gls/glossary/glosso.htm

Opacity
Something that reduces the passage of light often used to describe cataracts (opacity of lens.)
Found op http://www.dwp.gov.uk/medical/med_conditions/glossary.html
Opacity
The degree to which an object blocks light. Technically, opacity is expressed as a ratio of the incident light to the transmitted light.
Found op http://www.rodsmith.org.uk/photographic%20glossary/rods%20photographic%20gl
Opacity
O·pac'i·ty noun [ Latin opacitas : confer F. opacité.] 1. The state of being opaque; the quality of a body which renders it impervious to the rays of light; want of transparency; opaqueness. 2. Obscurity; want of clearness. ...
Found op http://www.encyclo.co.uk/webster/O/22
opacity
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. ... (05 Dec 1998) ...
Found op http://www.mondofacto.com/facts/dictionary?opacity
opacity
opaqueness noun the quality of being opaque to a degree; the degree to which something reduces the passage of light
Found op http://wordnetweb.princeton.edu/perl/webwn?s=opacity
opacity
noun the phenomenon of not permitting the passage of electromagnetic radiation
Found op http://wordnetweb.princeton.edu/perl/webwn?s=opacity
opacity
(o-pas´ĭ-te) the condition of being opaque. an opaque area.
Found op http://www.encyclo.co.uk/local/21001
Opacity
• (n.) The state of being opaque; the quality of a body which renders it impervious to the rays of light; want of transparency; opaqueness. • (n.) Obscurity; want of clearness.
Found op http://thinkexist.com/dictionary/meaning/opacity/
opacity
(from the article `industrial glass`) Because electrons in glass molecules are confined to particular energy levels, they cannot absorb and reemit photons (the basic units of light ... Opacity is one of the most desired properties of printing and writing papers. Satisfactory performance of such pape...
Found op http://www.britannica.com/eb/a-z/o/22
opacity
opacity The state of being opaque, or the degree to which something is opaque.
Found op http://www.wordinfo.info/words/index/info/view_unit/3395/
Opacity
- A measurement of how easily light passes through paper after printing.
Found op http://www.encyclo.co.uk/local/21026
opacity
Type: Term Pronunciation: ō-pas′i-tē Definitions: 1. A lack of transparency; an opaque or nontransparent area. 2. On a radiograph, a more transparent area is interpreted as an opacity to x-rays in the body. 3. Mental dullness.
Found op http://www.medilexicon.com/medicaldictionary.php?t=62713
Opacity
[optics] Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light. In radiative transfer, it describes the absorption and scattering of radiation in a medium, such as a plasma, dielectric, shielding material, glass, etc. An opaque obj...
Found op http://en.wikipedia.org/wiki/Opacity_(optics)