单词 | cirrostratus |
释义 | cirrostratus —cirrostrative, adj. /sir'oh stray"teuhs, -strat"euhs/, n. , pl. cirrostratus. a 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). [1795-1805; CIRRO- + STRATUS] |
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