light opacity
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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,… … Wikipedia
Opacity — may refer to: Opacity (optics), the degree to which light is not allowed to travel through Opaque context, a term to describe the linguistic context of co referential terms Phonological opacity, a term in phonology Opaque travel inventory, the… … Wikipedia
Opacity — O*pac i*ty, n. [L. opacitas: cf. F. opacit[ e].] 1. The state of being opaque; the quality of a body which renders it impervious to the rays of light; want of transparency; opaqueness. [1913 Webster] 2. Obscurity; want of clearness. Bp. Hall.… … The Collaborative International Dictionary of English
opacity — (n.) 1550s, darkness of meaning, obscurity, from Fr. opacité, from L. opacitatem (nom. opacitas) shade, shadiness, from opacus shaded, dark, opaque (see OPAQUE (Cf. opaque)). The literal sense condition of being impervious to light first recorded … Etymology dictionary
Opacity — (Roget s Thesaurus) < N PARAG:Opacity >N GRP: N 1 Sgm: N 1 opacity opacity Sgm: N 1 opaqueness opaqueness &c. >Adj. film Sgm: N 1 cloud cloud &c. 353 PARAG:Opacity >V GRP: V 1 Sgm: V 1 be opaque … English dictionary for students
opacity — noun /oʊˈpæsɪti/ a) The state or quality of being opaque, not allowing light to pass through We could not see the sandbar due to the opacity of the muddy water. b) The state or quality of being inaccessible to understanding The opacity of these… … Wiktionary
Opacity — F/A/V The ratio of the amount of light falling on a surface to the amount of light which is transmitted. (Lighting) PP An inverse measure of the level of transparency in an image, which is of importance when compositing. Opacity information is… … Audio and video glossary
opacity — noun (plural ties) Etymology: Middle French opacité shadiness, from Latin opacitat , opacitas, from opacus shaded, dark Date: 1560 1. a. obscurity of sense ; unintelligibleness b. the quality or state of being mentally obtuse ; dullness 2. the… … New Collegiate Dictionary
opacity — /oh pas i tee/, n., pl. opacities. 1. the state or quality of being opaque. 2. something opaque. 3. the degree to which a substance is opaque; capacity for being opaque. 4. Photog. the proportion of the light that is absorbed by the emulsion on… … Universalium
opacity — 1. A lack of transparency; an opaque or nontransparent area. 2. On a radiograph, a more transparent area is interpreted as an o. to x rays in the body. 3. Mental dullness. [L. opacitas, shadiness] nodular o. a solitary, round, circumscribed… … Medical dictionary
opacity — Synonyms and related words: abstruseness, adiaphanousness, ambiguity, amorphousness, asininity, blockishness, boobishness, boorishness, bovinity, cloddishness, cloudiness, crassness, crudeness, dark, darkness, denseness, density, dim wittedness,… … Moby Thesaurus
