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1. Dictionary

   o·pac·i·ty

   /ōˈpasədē/

   noun

   • 1. the condition of lacking transparency or translucence; opaqueness: "thinner paints need black added to increase opacity" Similar opaquenessnontransparencylack of transparencycloudinessfilminesshazinessmistinessblurblurrednessdirtinessdinginessmuddinessgriminesssmearinessOpposite transparencytranslucenceclarity
   • ▪ obscurity of meaning: "the difficulty and opacity in Barthes' texts" Similar lack of clarityobscurityabstrusenessunclearnessdensityimpenetrabilityenigmaunintelligibilityincomprehensibilityreconditenessOpposite claritylimpidity

   Word Origin mid 16th century: from French opacité, from Latin opacitas, from opacus ‘darkened’.

   Scrabble Points: 14

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2. www.merriam-webster.com › dictionary › opacityOpacity Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › opacity

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   Opacity is the quality or state of being opaque, or impervious to light or radiant energy. It can also mean obscurity of sense, dullness, or an opaque spot in a normally transparent structure.

3. dictionary.cambridge.org › dictionary › englishOPACITY | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   Opacity is the state of being opaque, or the degree to which something is opaque. It can also mean the quality of being difficult to understand or know about something. See more meanings, synonyms, and usage examples of opacity.

4. www.dictionary.com › browse › opacityOPACITY Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › opacity

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   opacity. / əʊˈpæsɪtɪ / noun. the state or quality of being opaque. the degree to which something is opaque. an opaque object or substance. obscurity of meaning; unintelligibility. physics photog the ratio of the intensity of light incident on a medium, such as a photographic film, to that transmitted through the medium.

5. www.vocabulary.com › dictionary › opacityOpacity - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › opacity

   Opacity is the characteristic of being difficult to understand or unclear. A professor whose lectures are known for opacity is going to find himself in a room full of some very frustrated students. In its literal sense opacity is used to talk about objects that don't allow light to shine through.

6. dictionary.cambridge.org › us › dictionaryOPACITY | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

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   Opacity is the state of being opaque, or the degree to which something is opaque. It can also mean the quality of being difficult to understand or know about. Learn more about opacity with examples and translations.

7. en.wikipedia.org › wiki › OpacityOpacity - Wikipedia

   en.wikipedia.org › wiki › Opacity

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   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.

8. www.thefreedictionary.com › opacityOpacity - definition of opacity by The Free Dictionary

   www.thefreedictionary.com › opacity

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   Opacity is the quality or state of being opaque, which means not allowing light or other electromagnetic radiation to pass through. Learn more about the different meanings, uses and translations of opacity in various contexts.