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
Related formso·paque·ly, adverbo·paque·ness, nounsub·o·paque, adjectivesub·o·paque·ly, adverbsub·o·paque·ness, noun

Synonyms for opaque

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for opaquely

Contemporary Examples of opaquely

Historical Examples of opaquely

  • After they had subsided into their seats, Chet's opaquely bluish eyes made another tour of inspection, in curiosity and wonder.

    David Harum

    Edward Noyes Westcott

  • A lamp was burning on a wall-shelf, but its flickering flame barely threw a glow above the top of the opaquely smoked chimney.

    Down the Yellowstone

    Lewis R. Freeman

British Dictionary definitions for opaquely



not transmitting light; not transparent or translucent
not reflecting light; lacking lustre or shine; dull
not transmitting radiant energy, such as electromagnetic or corpuscular radiation, or sound
hard to understand; unintelligible
unintelligent; dense


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 Formsopaquely, adverbopaqueness, noun

Word Origin for opaque

C15: from Latin opācus shady
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for opaquely



early 15c., opake, from Latin opacus "shaded, in the shade, shady, dark, darkened, obscure," of unknown origin. Spelling influenced after c.1650 by French opaque (c.1500), from the Latin. Figurative use from 1761. Related: Opaquely; opaqueness.

Online Etymology Dictionary, © 2010 Douglas Harper

opaquely in Medicine




Impenetrable by light; neither transparent nor translucent.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

opaquely in Science



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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.