Definitions for "Pinnae"
Keywords:  frond, fern, leaflet, plural, leaf
One of the divisions of a pinnately compound leaf.
Divisions (leaflets) of a compound leaf.
The Pinnae are elongated feathers projecting from the upper body area, generally the neck or head. In the Prairie Chicken for example, the males have longer pinnae than females and they erect them during courtship display.
Projecting feathers.
The external ear flaps.
The part of the human ear that is external to the head, composed primarily of skin and cartilage.