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单词 pinnation
释义 pinnation Nat. Hist.|pɪˈneɪʃən|
[f. L. pinnāt-us pinnate: see -ation.]
Pinnate condition or formation; division into pinnæ (pinna2).
1875Bennett & Dyer Sachs' Bot. 350 When the pinnation is compound.1882Vines Sachs' Bot. 212 The pinnation, like the formation of lobes, may be repeated.
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