pin·nate /ˈpɪˌnet/
(a.)羽毛狀的;羽狀的
Pin·nate Pin·na·ted a.
1. Bot. Consisting of several leaflets, or separate portions, arranged on each side of a common petiole, as the leaves of a rosebush, a hickory, or an ash. See Abruptly pinnate, and Illust., under Abruptly.
2. Zool. Having a winglike tuft of long feathers on each side of the neck.
Pinnated grouse Zool., the prairie chicken.
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pinnate
adj : of a leaf shape; featherlike; having leaflets on each side
of a common axis [syn: pinnated]