opaque

[ oh-peyk ]
/ oʊˈpeɪk /

adjective

noun

something that is opaque.
Photography. a coloring matter, usually black or red, used to render part of a negative opaque.

verb (used with object), o·paqued, o·paqu·ing.

Photography. to cover up blemishes on (a negative), especially for making a printing plate.
to cause to become opaque.

Origin of opaque

1375–1425; late Middle English opake < Latin opācus shaded

OTHER WORDS FROM opaque

Example sentences from the Web for opaque

British Dictionary definitions for opaque

opaque
/ (əʊˈpeɪk) /

adjective

noun

photog an opaque pigment used to block out particular areas on a negative

verb opaques, opaquing or opaqued (tr)

to make opaque
photog to block out particular areas, such as blemishes, on (a negative), using an opaque

Derived forms of opaque

opaquely, adverb opaqueness, noun

Word Origin for opaque

C15: from Latin opācus shady

Medical definitions for opaque

opaque
[ ō-pāk ]

adj.

Impenetrable by light; neither transparent nor translucent.

Scientific definitions for opaque

opaque
[ ō-pāk ]

Resistant to the transmission of certain kinds of radiation, usually light. Metals and many minerals are opaque to light, while being transparent to radio waves and neutrinos. Compare translucent transparent.