opacity

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o·pac·i·ty

(ō-păs′ĭ-tē)

n. pl. o·pac·i·ties

1. The quality or state of being opaque.

2. Something opaque.

a. Obscurity; impenetrability.

b. Dullness of mind.

[French opacité, from Old French, from Latin opācitās, from opācus, dark.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

opacity

(əʊˈpæsɪtɪ)

n, pl -ties

1. (General Physics) the state or quality of being opaque

2. the degree to which something is opaque

3. (General Physics) an opaque object or substance

4. obscurity of meaning; unintelligibility

5. (Photography) physics photog the ratio of the intensity of light incident on a medium, such as a photographic film, to that transmitted through the medium

6. (Logic) logic philosophy the property of being an opaque context

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

o•pac•i•ty

(oʊˈpæs ɪ ti)

n., pl. -ties.

1. the state or quality of being opaque.

2. something opaque.

3. the degree to which a substance is or may be opaque.

4. the proportion of light absorbed by the emulsion on an area of a photographic film or plate.

5. obscurity of meaning.

6. mental dullness.

[1550–60; < Latin opācitās shade]

o·pac·i·ty

(ō-păs′ĭ-tē)

The quality or condition of being opaque.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

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Noun	1.	opacity - the phenomenon of not permitting the passage of electromagnetic radiation physical phenomenon - a natural phenomenon involving the physical properties of matter and energy optical opacity - opacity to light radio-opacity, radiopacity - opacity to X-rays or other radiation transparence, transparency - permitting the free passage of electromagnetic radiation
	2.	opacity - incomprehensibility resulting from obscurity of meaning opaqueness incomprehensibility - the quality of being incomprehensible
	3.	opacity - the quality of being opaque to a degree; the degree to which something reduces the passage of light opaqueness murkiness, cloudiness, muddiness - the quality of being cloudy blurriness, fuzziness, indistinctness, fogginess, softness - the quality of being indistinct and without sharp outlines quality - an essential and distinguishing attribute of something or someone; "the quality of mercy is not strained"--Shakespeare uncloudedness, clarity, clearness - the quality of clear water; "when she awoke the clarity was back in her eyes"

opacity

noun

1. opaqueness, cloudiness, density, obscurity, dullness, murkiness, haziness, impermeability, mistiness, milkiness, filminess The opacity of the water is due to its mineral content.

2. obscurity, complexity, ambiguity, intricacy, vagueness, incomprehensibility, abstruseness, impenetrableness, reconditeness the deliberate opacity of his language

Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

Translations

لا شَفافِيَه، إبْهام، غُموض

uklarhed

ógangsæi

donukluksaydamsızlık

不透明不透明性

opacity

[əʊˈpæsɪtɪ] N [of lens, substance] → opacidad f; [of statement etc] → hermetismo m, ininteligibilidad f

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

opacity

[əʊˈpæsɪti] n → opacité f

Collins English/French Electronic Resource. © HarperCollins Publishers 2005

opacity

→ Undurchsichtigkeit f, → Lichtundurchlässigkeit f; (of paint) → Deckkraft f

(fig: of essay, meaning etc) → Undurchsichtigkeit f

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

opacity

[əʊˈpæsɪtɪ] n → opacità

Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

opaque

(əˈpeik) , ((American) ou-) adjective

not transparent. an opaque liquid.

oˈpaqueness noun

opacity (əˈpӕsəti) noun

o·pac·i·ty

n. opacidad, falta de transparencia.

opacity

n (pl -ties) opacidad f

References in classic literature ?

The light from the tiny lamps fell in all sorts of odd forms, as the rays crossed each other, or the opacity of our bodies threw great shadows.

View in context

Cataract or lens opacity was assessed by scoring and measurement of pixel intensity.

Scientists Test Medicinal Plant That Treats Cataract

On this basis, lens opacity maybe a protective factor for AMD.

Association between Age-Related Macular Degeneration and Lens Opacity in Senior Population in Hainan Province

Specific topics include equations for calculating the state of opacity, developments in a double ablation front scheme for iron spectral opacity measurements in solar conditions, opacity enhancement due to diffusion-induced element accumulation inside B-type stars, Monte Carlo simulations of biophysical factors for the viability of life in exoplanetary atmospheres, and the Belgian Repository of fundamental Atomic data and Stellar Spectra: an insight into systematic line selection.

Workshop on Astrophysical Opacities

HMG Paints has further expanded its Unit Lite mixing line with the addition of two new lead-free High Opacity Colorants.

HMG Launches High Opacity Lead Free Colorants

HMG Paints has expanded its innovative Unit Lite mixing scheme with the addition of two brand new lead-free High Opacity Colourants.

Lead free colourants

* Zanders has expanded its label paper portfolio with Zanlabel high gloss, a high-luster, single-sided double-coated quality, which is characterized by its particularly high wet opacity. It has an extra-smooth surface with an attractive appearance and pleasant feel, which achieves excellent printing and finishing results.

LABEL PAPERS

[8] Mammographic findings like parenchymal opacity, tissue traction, microcalcification, skin thickening, bloody nipple discharge and nipple retraction may all be suggestive of breast disease.

PATTERN OF MAMMOGRAPHIC FINDINGS AMONG FEMALES REFERRED FOR MAMMOGRAPHY AT TERTIARY CARE CENTRE IN IGIMS, PATNA

Wu, "Predominant diffuse ground glass opacity in both lung fields: A case of sarcoidosis with atypical CT findings," Respiratory Medicine Case Reports, vol.

Mass-Like Ground-Glass Opacities in Sarcoidosis: A Rare Presentation Not Previously Described

We classify and test empirical measures of firm opacity and document theoretical and empirical inconsistencies across these proxies by testing the relative opacity of banks versus non-banks.