Found 2 items, similar to OPACITY.
English → English (WordNet) Definition: opacity opacity n 1: the phenomenon of not permitting the passage of electromagnetic radiation [ant: transparency] 2: incomprehensibility resulting from obscurity of meaning [syn: opaqueness] 3: the quality of being opaque to a degree; the degree to which something reduces the passage of light [syn: opaqueness] [ant: clearness]
English → English (gcide) Definition: Opacity Opacity \O*pac"i*ty\, n. [L. opacitas: cf. F. opacit['e].] 1. The state of being opaque; the quality of a body which renders it impervious to the rays of light; want of transparency; opaqueness. [1913 Webster] 2. Obscurity; want of clearness. --Bp. Hall. [1913 Webster]