Opaque Definition

ō-pāk
opaqued, opaquing, opaquer, opaquest
adjective
opaquer, opaquest
Not letting light pass through; not transparent or translucent.
Webster's New World
Not reflecting light; not shining or lustrous; dull or dark.
Webster's New World
Impenetrable by a form of radiant energy other than visible light.
A chemical solution opaque to x-rays.
American Heritage
Not allowing electricity, heat, etc. to pass through.
Webster's New World
Hard to understand; obscure.
Webster's New World
noun
Anything opaque.
Webster's New World
An opaque liquid used in blocking out parts of a negative.
Webster's New World
verb
opaqued
To make opaque.
Webster's New World
To apply opaque to (a negative)
Webster's New World

Other Word Forms of Opaque

Adjective

Base Form:
opaque
Comparative:
opaquer
Superlative:
opaquest

Origin of Opaque

  • Middle English opake shady and French opaque opaque (from Old French shady) both from Latin opācus

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle English opake, from Latin opacus (“shaded, shady, dark") (of unknown origin), later reinforced from Middle French opaque.

    From Wiktionary

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opaque