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单词 crenulation
释义 crenulation Zool. and Bot.|krɛnjuːˈleɪʃən|
[f. as prec. + -ation.]
A crenulated formation; a minute rounded marginal tooth or crenation.
1846Dana Zooph. (1848) 391 The lamellæ are marginal crenulations.1881R. B. Watson in Jrnl. Linn. Soc. XV. 452 Forming on the upper whorls infrasutural crenulations.
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