释义 |
WordReference Random House Unabridged Dictionary of American English © 2024cir•ro•stra•tus (sir′ō strā′təs, -strat′əs),USA pronunciation n., pl. -tus. - Meteorologya cloud of a class characterized by a composition of ice crystals and often by the production of halo phenomena and appearing as a whitish and usually somewhat fibrous veil, often covering the whole sky and sometimes so thin as to be hardly discernible: of high altitude, ab. 20,000–40,000 ft. (6000–12,000 m).
- cirro- + stratus 1795–1805
cir′ro•stra′tive, adj. |