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单词 amygdule
释义 amygdule Geol.|əˈmɪgdjuːl|
[f. L. amygd(ala) almond + -ule, after nodule, etc.]
(See quot.)
1877Le Conte Elem. Geol. (1879) 211 Sometimes the filling has taken place very slowly by successive additions of different coloured material. Thus are formed the beautiful agate pebbles, or more properly, amygdules.1882Geikie Text-bk. Geol. ii. ii. ii. 62 Secondary minerals (amygdules) such as calcite, calcedony, quartz, and zeolites.
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