- The definition of opaque is not capable of having light pass through or hard to understand.
- An example of opaque is the quality of a black sheet of paper.
- An example of opaque is the study of astrophysics.
This black sheet of paper is opaque.Licensed from iStockPhoto
- not letting light pass through; not transparent or translucent
- not reflecting light; not shining or lustrous; dull or dark
- not allowing electricity, heat, etc. to pass through
- hard to understand; obscure
- slow in understanding; obtuse
Origin: Middle English opake from Classical Latin opacus, shady
- anything opaque
- Photog. an opaque liquid used in blocking out parts of a negative
Used by arrangement with John Wiley & Sons, Inc.
- a. Impenetrable by light; neither transparent nor translucent.b. Not reflecting light; having no luster: an opaque finish.
- Impenetrable by a form of radiant energy other than visible light: a chemical solution opaque to x-rays.
- a. So obscure as to be unintelligible: “opaque, elusive, minimal meanings” (John Simon).b. Obtuse of mind; dense. See Synonyms at dark.
Origin: Middle English opake, shady, and French opaque, opaque (from Old French, shady), both from Latin opācus.
- o·paqueˈly adverb
- o·paqueˈness noun
opaque - Medical Definition
opaque - Science Definition
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