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Definition of Opaque
1. Adjective. Not transmitting or reflecting light or radiant energy; impenetrable to sight. "Opaque to X-rays"
Also: Unclear
Similar to: Cloudy, Mirky, Muddy, Murky, Turbid, Fogged, Foggy, Frosted, Glaucous, Light-tight, Lightproof, Milklike, Milky, Whitish, Semiopaque, Solid
Antonyms: Clear
Derivative terms: Opacity, Opacity, Opaqueness
2. Adjective. Not clearly understood or expressed.
Similar to: Incomprehensible, Uncomprehensible
Derivative terms: Opacity, Opaqueness, Unintelligibility
Definition of Opaque
1. a. Impervious to the rays of light; not transparent; as, an opaque substance.
2. n. That which is opaque; opacity.
Definition of Opaque
1. Adjective. Neither reflecting nor emitting light. ¹
2. Adjective. Allowing little light to pass through, not translucent or transparent. ¹
3. Adjective. (figuratively) Unclear, unintelligible, hard to get or explain the meaning of ¹
4. Adjective. (figuratively) Obtuse, stupid. ¹
5. Adjective. (computing) Describes a type for which higher-level callers have no knowledge of data values or their representations; all operations are carried out by the type's defined abstract operators. ¹
6. Noun. (obsolete poetic) An area of darkness; a place or region with no light. ¹
7. Noun. Something which is opaque rather than translucent. ¹
8. Verb. (transitive) To make, render (more) opaque. ¹
¹ Source: wiktionary.com
Definition of Opaque
1. impervious to light [adj OPAQUER, OPAQUEST] : OPAQUELY [adv] / to make opaque [v OPAQUED, OPAQUING, OPAQUES] - See also: opaque
Medical Definition of Opaque
1. Impervious to light; not translucent or only slightly so. Compare: radiopaque. Origin: Fr. Fr. L. Opacus, shady (05 Mar 2000)