AskDefine | Define opacity

Dictionary Definition



1 the phenomenon of not permitting the passage of electromagnetic radiation [ant: transparency]
2 incomprehensibility resulting from obscurity of meaning [syn: opaqueness]
3 the quality of being opaque to a degree; the degree to which something reduces the passage of light [syn: opaqueness] [ant: clearness]

User Contributed Dictionary



From opacité.


  1. The state of being opaque.
  2. A measure of relative opaqueness.


the state of being opaque

Extensive Definition

Opacity or opaque refers to something difficult to see through or perceive. It can refer to:
opacity in Afrikaans: W.W.Opaciteit
opacity in German: Opak
opacity in Spanish: Opacidad
opacity in Esperanto: Opakeco
opacity in Ido: Opaka
opacity in Dutch: Opaciteit
opacity in Norwegian: Opasitet
opacity in Portuguese: Opacidade
opacity in Simple English: Opacity

Synonyms, Antonyms and Related Words

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