“coccolith”的英文意思_释义_用法

单词

coccolith

释义

coccolith Biol.|ˈkɒkəlɪθ|
[f. Gr. κόκκο-ς grain + λίθος stone.]
The name given (by Prof. Huxley) to minute round or oval disk-like organic bodies found in deep-sea dredging, and also fossilized in chalk. Now generally believed to be of algal nature.
1868Huxley Lay Serm. (1870) 206 The chalk, like the soundings, contains these mysterious coccoliths and coccospheres.1875Dawson Dawn of Life iv. 69 The Coccoliths appear to be grains of calcareous matter formed in minute plants adapted to a deep-sea habitat.1878Huxley Physiogr. xvi. 267 Multitudes of very minute saucer-shaped disks, termed coccoliths, which are frequently met with associated together into spheroidal aggregations, the coccospheres of Wallich.

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