| 单词 | lenticular cloud |
| 释义 | > as lemmaslenticular cloud lenticular cloud n. Meteorology a lens- or lentil-shaped cloud with sharp, sometimes iridescent outlines, which usually occurs in association with lee waves. ΘΚΠ the world > the earth > weather and the atmosphere > weather > cloud > [noun] > a cloud > other specific shapes Noah's Ark?1789 lenticular cloud1894 1894 W. C. Ley Cloudland iv. 49 When a patch of cloud has an approximately circular periphery, and a somewhat greater vertical thickness at or near its centre than at its edge, towards which it shelves off, being, in fact, a flat spheroid, its largest diameter lying parallel to the earth's surface, we call the cloud Lenticular.] 1894 W. C. Ley Cloudland iv. 50 Rather rarely, I have seen very perfect Lenticular clouds during a frosty afternoon in winter lying above the summits of low hills. 1926 W. J. Humphreys Fogs & Clouds iii. 58 The lenticular cloud..often is only the cloud cap to a stationary..air billow produced as a rule by the flow of the wind over an uneven surface. 1978 A. Welch Bk. Airsports vii. 122/2 (caption) Wave systems are often characterized by smooth-edged lenticular clouds which remain almost stationary in the sky. 1985 National Geographic May 673/1 Wave, or lenticular, clouds.., partly created by strong winds blowing perpendicular to a mountain range. < as lemmas |
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