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Definition of Opacity
1. Noun. The phenomenon of not permitting the passage of electromagnetic radiation.
Specialized synonyms: Optical Opacity, Radio-opacity, Radiopacity
Derivative terms: Opaque
Antonyms: Transparency
2. Noun. Incomprehensibility resulting from obscurity of meaning.
3. Noun. The quality of being opaque to a degree; the degree to which something reduces the passage of light.
Specialized synonyms: Cloudiness, Muddiness, Murkiness, Blurriness, Fogginess, Fuzziness, Indistinctness, Softness
Generic synonyms: Quality
Attributes: Opaque
Antonyms: Clarity
Derivative terms: Opaque, Opaque
Definition of Opacity
1. n. The state of being opaque; the quality of a body which renders it impervious to the rays of light; want of transparency; opaqueness.
Definition of Opacity
1. Noun. The state or quality of being opaque, not allowing light to pass through ¹
2. Noun. The state or quality of being inaccessible to understanding ¹
3. Noun. (optics countable) A measure of relative impenetrability to electromagnetic radiation such as light. ¹
¹ Source: wiktionary.com
Definition of Opacity
1. something that is opaque [n -TIES]
Medical Definition of Opacity
1. The degree to which smoke or particles emitted into the air reduce the transmission of light and obscure the view of an object in the background. (05 Dec 1998)
Lexicographical Neighbors of Opacity
Literary usage of Opacity
Below you will find example usage of this term as found in modern and/or classical literature:
1. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1858)
"Partial opacity of the Lens, producing the Symptoms of Short Sight.— A form of
cataract is occasionally met with in which the opacity amounts to no more ..."
2. Text-book of Ophthalmology by Ernst Fuchs (1911)
"This marginal zone of opacity generally embraces from one-third to one-half of the
... The surface of the lea over the opacity is somewhat dull, ..."
3. A Treatise on the diseases of the eye by William Lawrence (1854)
"The same treatment is required as for inflammation and opacity of the cornea
under other circumstances.1 Congenital opacity of the Cornea. ..."
4. The Principles and Practice of Ophthalmic Medicine and Surgery by Thomas Wharton Jones (1863)
"opacity from a cicatrice—Leucoma.—According as the ulcer of the cornea has ...
The circumference of an opacity from a cicatrice, is usually more defined ..."
5. The Chemical News and Journal of Industrial ScienceChemistry (1902)
"A Paper read before the Royal Society, February 6, 1901. f The opacity logarithm
represent! the density of the image, absolute density being represented by ..."
6. Report of the Annual Meeting (1841)
"On opacity of the Cornea produced by Sulphuric Acid. By RD THOMSON, MD The rapid
destruction of vision, when sulphuric acid is brought into contact with the ..."
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