| 释义 |
opaque
I. \(ˈ)ō|pāk\ adjective
(sometimes -er/-est)
Etymology: alteration (influenced by French opaque) of earlier opake, from Latin opacus shaded, dark, perhaps from op-, ob to, before — more at epi-
1. archaic : lacking illumination
2. : neither reflecting nor emitting light — not in current technical use
3.
a. : impervious to the rays of visible light : not transparent or translucent
< his eyes were light, large, and bright, but it was that kind of brightness which belongs to an opaque, and not to a transparent body — Anthony Trollope >
b. : impervious to forms of radiant energy other than visible light (as infrared radiation or radio waves)
< organic compounds containing iodine or bromine are also opaque to roentgen rays — C.H.Thienes >
4.
a. : hard to understand, solve, or explain : not simple, clear, or lucid
< how opaque and incredible the past seems to us — L.P.Smith >
b. : impervious to reason : stupid, dull, dense
< too opaque to recognize the insult >
Synonyms: see dark
II. noun
(-s)
: something that is opaque : an opaque medium or space: as
a. : an opaque paint or other preparation for blocking out portions of a photographic negative or print
b. : an opaque photographic print — contrasted with transparency
III. transitive verb
(-ed/-ing/-s)
1. : to make opaque
2. : to apply opaque to (as parts of a photographic negative or positive) |