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opacity

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Opacity is defined as the quality of not letting light pass through, or hard to understand.

(noun)

An example of something with opacity is a darkened window.
An example of opacity is the Russian language.

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See opacity in Webster's New World College Dictionary

noun

the state, quality, or degree of being opaque
pl. opacities something opaque, as a spot on the cornea or lens of an eye

Origin: Fr opacité < L opacitas < opacus, shady

See opacity in American Heritage Dictionary 4

noun pl. o·pac·i·ties

The quality or state of being opaque.
Something opaque.
a. Obscurity; impenetrability.
b. Dullness of mind.

Origin:

Origin: French opacité

Origin: , from Old French

Origin: , from Latin opācitās

Origin: , from opācus, dark

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