| 单词 | nebula |
| 释义 | nebula —nebular, adj. /neb"yeuh leuh/, n. , pl. nebulae /-lee', -luy'/, nebulas. 1. Astron. a. Also called diffuse nebula. a cloud of interstellar gas and dust. Cf. dark nebula, emission nebula, reflection nebula. b. (formerly) any celestial object that appears nebulous, hazy, or fuzzy, and extended in a telescope view. 2. Pathol. a. a faint opacity in the cornea. b. cloudiness in the urine. 3. any liquid medication prepared for use as a spray. [1655-65; < L: a mist, vapor, cloud; akin to Gk nephéle cloud, G Nebel fog, haze] |
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