pinnated, a. [L. pinnatus feathered, fr. pinna a feather. See Pin a peg, Pen feather.].
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. [1913 Webster]
Having a winglike tuft of long feathers on each side of the neck. [1913 Webster]