opacity
[ oh-pas-i-tee ]
/ oʊˈpæs ɪ ti /
noun, plural o·pac·i·ties.
Nearby words
op. cit., opa, opa-locka, opacification, opacify, opacity, opacus, opafication, opah, opal, opal glass
Origin of opacity
Related formsnon·o·pac·i·ty, noun, plural non·o·pac·i·ties.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples 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
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Word Origin and History for opacity
opacity
1550s, "darkness of meaning, obscurity," from French opacité, from Latin opacitatem (nominative opacitas) "shade, shadiness," from opacus "shaded, dark, opaque" (see opaque). The literal sense "condition of being impervious to light" first recorded 1630s.
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine 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.