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aftershaft

副羽

WordNet (r) 3.0 (2006) (WordNet)

aftershaft
n 1: a supplementary feather (usually small) on the underside of
the base of the shaft of some feathers in some birds

The Collaborative International Dictionary of English v.0.48 (gcide)

Hypoptilum \Hy*pop"ti*lum\, n.; pl. L. {Hypoptila}, E.
{Hypoptilums}. [NL., fr. Gr. "ypo` beneath ? down.] (Zool.)
An accessory plume arising from the posterior side of the
stem of the contour feathers of many birds; -- called also
{aftershaft}. See Illust. of {Feather}.
[1913 Webster]

Aftershaft \Aft"er*shaft`\, n. (Zool.)
The {hypoptilum}.
[1913 Webster]

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Aftershaft	查看　Aftershaft　在百度字典中的解释	百度英翻中〔查看〕
Aftershaft	查看　Aftershaft　在Google字典中的解释	Google英翻中〔查看〕
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