from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The quality or state of being opaque.
- n. Something opaque.
- n. Obscurity; impenetrability.
- n. Dullness of mind.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The state or quality of being opaque, not allowing light to pass through
- n. The state or quality of being inaccessible to understanding
- n. A measure of relative impenetrability to electromagnetic radiation such as light.
from the GNU version of the Collaborative International Dictionary of English
- 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.
from The Century Dictionary and Cyclopedia
- n. The state of being opaque; opaqueness; the quality of a body which renders it impervious to the rays of light; want of transparency.
- n. That which is opaque; an opaque body or object; an opaque part or spot.
- n. Darkness; obscurity.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the phenomenon of not permitting the passage of electromagnetic radiation
- n. the quality of being opaque to a degree; the degree to which something reduces the passage of light
- n. incomprehensibility resulting from obscurity of meaning
French opacité, from Old French, from Latin opācitās, from opācus, dark.(American Heritage® Dictionary of the English Language, Fourth Edition)
From French opacité. (Wiktionary)