| 单词 |
glaciation |
| 释义 |
glaciation|gleɪʃɪˈeɪʃən|
[n. of action f. L. glaci-āre to freeze: see prec. and -ation.]
†1. The process of freezing; a result of this. Obs.
1646Sir T. Browne Pseud. Ep. ii. i. 54 So is it [Ice] plaine upon the surface of water, but round in hayle, (which is also a glaciacion). 1658J. Robinson A Calm Vent. 120 A violent motion of water, is a preservative against glaciation. 1690Boyle Chr. Virtuoso i. 66 'Tis plain..that by Glaciation, Water is rather expanded.
2. Geol. The condition of being covered by an ice-sheet or by glaciers; glacial action or its result.
1863Lyell Antiq. Man ix. (ed. 3) 165 These erratic blocks..are often polished and striated, having undergone what is called glaciation. 1875― Princ. Geol. I. i. xiii. 283 Mr. Croll's Theory of alternate glaciation. 1880Dawkins Early Man v. 117 The climate must have been arctic in its severity during this period of glaciation. 1881Nature No. 626. 606 Between Reykjavik and Hafnarfjörd the glaciation is distinctly from south-east to north-west. |
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