Definify.com
Webster 1913 Edition
Pinnated
{
Pin′nate
,Pin′na-ted
, }Adj.
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.