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EnglishEdit

EtymologyEdit

From French opacité.

PronunciationEdit

NounEdit

opacity (countable and uncountable, plural opacities)

  1. (uncountable) 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.
  2. (uncountable) The state or quality of being inaccessible to understanding.
    The opacity of these decisions is troubling.
  3. (optics, countable) A measure of relative impenetrability to electromagnetic radiation such as light.
    The opacity of a clean glass window is near zero.

SynonymsEdit

Coordinate termsEdit

TranslationsEdit

The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.