Dictionary.com

opacity

[ oh-pas-i-tee ]
/ oʊˈpæs ɪ ti /
SEE SYNONYMS FOR opacity ON THESAURUS.COM

noun, plural o·pac·i·ties.

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Origin of opacity

First recorded in 1550–60, opacity is from the Latin word opācitās shade. See opaque, -ity

OTHER WORDS FROM opacity

non·o·pac·i·ty, noun, plural non·o·pac·i·ties.

Words nearby opacity

oozy, op, OPA, opacification, opacify, opacity, opacus, opah, opal, opalesce, opalescence
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Words related to opacity

murkiness, obscurity, darkness

Example sentences from the Web for opacity

British Dictionary definitions for opacity

opacity
/ (əʊˈpæsɪtɪ) /

noun plural -ties

the state or quality of being opaque
the degree to which something is opaque
an opaque object or substance
obscurity of meaning; unintelligibility
physics photog the ratio of the intensity of light incident on a medium, such as a photographic film, to that transmitted through the medium
logic philosophy the property of being an opaque context
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

Medical definitions for opacity

opacity
[ ō-păs′ĭ-tē ]

n.

The quality or state of being opaque.
An opaque or nontransparent area, as of the cornea.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.