opaque

The definition of opaque is not capable of having light pass through or hard to understand.

(adjective)

  1. An example of opaque is the quality of a black sheet of paper.
  2. An example of opaque is the study of astrophysics.

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See opaque in Webster's New World College Dictionary

adjective

  1. not letting light pass through; not transparent or translucent
  2. not reflecting light; not shining or lustrous; dull or dark
  3. not allowing electricity, heat, etc. to pass through
  4. hard to understand; obscure
  5. slow in understanding; obtuse

Origin: ME opake < L opacus, shady

noun

  1. anything opaque
  2. Photog. an opaque liquid used in blocking out parts of a negative

transitive verb opaqued, opaquing

  1. to make opaque
  2. Photog. to apply opaque to (a negative)

Related Forms:

See opaque in American Heritage Dictionary 4

adjective
  1. a. Impenetrable by light; neither transparent nor translucent.
    b. Not reflecting light; having no luster: an opaque finish.
  2. Impenetrable by a form of radiant energy other than visible light: a chemical solution opaque to x-rays.
  3. a. So obscure as to be unintelligible: “opaque, elusive, minimal meanings” (John Simon).
    b. Obtuse of mind; dense. See Synonyms at dark.
noun
Something that is opaque, especially an opaque pigment used to darken parts of a photographic print or negative.

Origin:

Origin: Middle English opake, shady

Origin: , and French opaque, opaque (from Old French, shady)

Origin: , both from Latin opācus

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Related Forms:

  • o·paqueˈly adverb
  • o·paqueˈness noun

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