(Latin) pinnatus feathered, from pinna a feather. See Pin a peg, Pen feather.
1. (Botanical) 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 Illustration, under Abruptly.2. (Zoölogy) Having a winglike tuft of long feathers on each side of the neck. Pinnated grouse (Zoölogy), the prairie chicken.
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From Latin pinnātus (“feathered”), from pinna (“feather”)
Adjective pinnate (comparative more pinnate, superlative most pinnate) Resembling a feather. (botany) Having two rows of branches, lobes, leaflets, or veins arranged on each side of a common axis Mimosa is a tree with pinnate leaves. The trunk is unbranched, often much shortened, and bears a crown of feathery or pinnate fronds. (zoology) Having a winglike tuft of long feathers on each side of the neck. the pinnate grouse, or prairie chicken
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