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The Collaborative International Dictionary
Pinnate

Pinnate \Pin"nate\, Pinnated \Pin"na*ted\, a. [L. pinnatus feathered, fr. pinna a feather. See Pin a peg, Pen feather.]

  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. (Zo["o]l.) Having a winglike tuft of long feathers on each side of the neck.

    Pinnated grouse (Zo["o]l.), the prairie chicken.

Douglas Harper's Etymology Dictionary
pinnate

1727, from Latin pinnatus "feathered, winged," from pinna "feather, wing" (see pin (n.)).

Wiktionary
pinnate

a. 1 Resembling a feather. 2 (context botany English) Having two rows of branches, lobes, leaflets, or veins arranged on each side of a common axis 3 (context zoology English) Having a winglike tuft of long feathers on each side of the neck.

WordNet
pinnate

adj. of a leaf shape; featherlike; having leaflets on each side of a common axis [syn: pinnated]

Usage examples of "pinnate".

A tea derived from our Common Maidenhair, a simple little fern, common on old walls, with long, simply pinnate fronds, their sori arranged on the back in oblique lines, has also demulcent effect.

Too, there were many other spices, and such, though well sealed, from various worlds, such as nutmegs, gingers, cinnamons, marjorams, frostfruit peel, coriander, thyme, extract of les, cream of kalot, essence of almond, rosemary, mint, siba, chives, mustard, whole cloves, ground cloves, curry powder, mixed herbs, flakes of hineen, tel sauce, minced basbas stalk, sage, paprika, boiled arla leaves, seed of the pinnate fennis and vanilla.

It belongs to the order Rosacece and is distinguished from its immediate relations the Pear, Crab Apple, White Beam and Wild Service Tree by its regularly pinnate, Ashlike leaves.