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Meaning of opaque

o•paque

Pronunciation: (ō-pāk'), [key]
— adj., n., v., o•paqued, o•paqu•ing.
—adj.
  1. not transparent or translucent; impenetrable to light; not allowing light to pass through.
  2. not transmitting radiation, sound, heat, etc.
  3. not shining or bright; dark; dull.
  4. hard to understand; not clear or lucid; obscure: The problem remains opaque despite explanations.
  5. dull, stupid, or unintelligent.
—n.
  1. something that is opaque.
  2. a coloring matter, usually black or red, used to render part of a negative opaque.
—v.t.
  1. to cover up blemishes on (a negative), esp. for making a printing plate.
  2. to cause to become opaque.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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