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Opacity   /oʊpˈæsəti/   Listen
Opacity

noun
1.
The phenomenon of not permitting the passage of electromagnetic radiation.
2.
Incomprehensibility resulting from obscurity of meaning.  Synonym: opaqueness.
3.
The quality of being opaque to a degree; the degree to which something reduces the passage of light.  Synonym: opaqueness.



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"Opacity" Quotes from Famous Books



... unpainted floors, grimy plaster walls and ceilings and grimy windows whose panes were framed in cobwebs and crusted so thick with the accumulated dust and damp of years that they lacked little of complete opacity. No room contained ...
— The Bandbox • Louis Joseph Vance

... dead. I know his sister."—"Old chap, I am all in."—"Say, we are all lost."—"What time is it?"—"My dear fellow, there is no more time, the French Government forbids it." Suddenly burst out of the loquacious opacity a dozen handfuls of Algeriens, their feet swaggering with fatigue, their eyes burning, apparently by themselves—faceless in the equally black mist. By threes and fives they assaulted the goblin who wailed and shook his withered fist in their faces. There was no train. It had ...
— The Enormous Room • Edward Estlin Cummings

... by means of a fog cloud which hung over the town, and concealed the dome and tower from view—a blood-red cross appearing to shine in the heavens and rest upon Birmingham. As the traveller approached the town on that side the opacity of the fog gradually diminished until, when about three miles away, the broad lines of light which spanned the dome appeared in sight, and, magnified by the thin vapour through which they were refracted, gave the idea of some gigantic monster clawing ...
— Showell's Dictionary of Birmingham - A History And Guide Arranged Alphabetically • Thomas T. Harman and Walter Showell

... management of what you have in hand. The one is of ivory, which letteth in confused, doubtful, and uncertain dreams; for through ivory, how small and slender soever it be, we can see nothing, the density, opacity, and close compactedness of its material parts hindering the penetration of the visual rays and the reception of the specieses of such things as are visible. The other is of horn, at which an entry is made to sure and certain ...
— Gargantua and Pantagruel, Complete. • Francois Rabelais

... them like a shell within a shell, very thin, of a pearly whiteness. Professor Tyndall has shown in a very beautiful manner that ice is but an agglomeration of snow crystals: the transparency of the former being due to the expulsion of the air, entrapped in and causing the whiteness and opacity of the latter. There is a formation called the snow plant of California, which arises to some height, and has been compared to various things, a fountain convoluted and enlarged above, a crystallized small bushy shrub, etc.; but on closer inquiry, I have failed as yet to get any definite ...
— Scientific American, Volume XXXVI., No. 8, February 24, 1877 • Various


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