PINNATE

pinnate. Pinnate, a. having leaflets along the side like fethers

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{ Pin″nate (?), Pin″na‐ted (?), } a. [[L. pinnatus feathered, fr. pinna a feather. See Pin a peg, Pen feather.]] 1. 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. 2. (Zoöl.) Having a winglike tuft of long feathers on each side of the neck.
Pinnated grouse (Zoöl.), the prairie chicken.