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单词 pulviplume
释义 ˈpulviplume Ornith.
[ad. mod.L. pulviplūma, f. L. pulvi-s dust + plūma plume, feather.]
Powder-down.
1890Coues Field & Gen. Ornithol. 129 Such plumulæ, from being always dusted over with dry scurfy exfoliation, are called powder-down... I call them pulviplumes.
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