opacity

Found in thesaurus: physical phenomenon, incomprehensibility, quality

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Babylon English

opacity

n. opaqueness; degree to which something is opaque; obscurity; fuzziness; amount of area on a film that absorbs light (Photography); stupidity

English Wikipedia - The Free Encyclopedia

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Opacity

Opacity may refer to:

Opacity (optics), the degree to which light is not allowed to travel through
Opaque context, a term to describe the linguistic context of co-referential terms
Phonological opacity, a term in phonology
Opaque travel inventory, the market of selling unsold travel inventory at a discounted price

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WordNet 2.0

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opacity

Noun
1. the phenomenon of not permitting the passage of electromagnetic radiation
(antonym) transparency, transparence
(hypernym) physical phenomenon
(hyponym) optical opacity
2. incomprehensibility resulting from obscurity of meaning
(synonym) opaqueness
(hypernym) incomprehensibility
3. the quality of being opaque to a degree; the degree to which something reduces the passage of light
(synonym) opaqueness
(antonym) clearness, clarity, uncloudedness
(hypernym) quality
(hyponym) cloudiness, murkiness, muddiness
(attribute) opaque

Webster's Revised Unabridged Dictionary (1913)

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Opacity

(n.)
The state of being opaque; the quality of a body which renders it impervious to the rays of light; want of transparency; opaqueness.

(n.)
Obscurity; want of clearness.

Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About

EPA Terms of Environment

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Opacity

The amount of light obscured by particulate pollution in the air; clear window glass has zero opacity, a brick wall is 100 percent opaque. Opacity is an indicator of changes in performance of particulate control systems.

Provided as a public service by the U.S. Environmental Protection Agency