An endowment is a fund that is restricted. Only the interest from the fund can be spent, not the principal that anchors the endowment. Usually, only a portion of the interest or earnings from the endowment (typically five percent) can be spent annually to make sure that the original funds grow over time.
Hearing. The external ear, also called the auricle or pinna, is the loop of cartilage and skin that is attached to outside of the head. It works much like a megaphone. Sound is funneled through the external ear and piped into the external auditory canal, according to Nebraska Medicine.
Definition of PINNA. 1. a: a projecting body part (as a feather, wing, or fin) b: the largely cartilaginous projecting portion of the external ear â see ear illustration.2. : a leaflet or primary division of a pinnate leaf or frond.See pinna defined for kids.ADVERTISEMENT.efinition of PINNA. 1. a: a projecting body part (as a feather, wing, or fin) b: the largely cartilaginous projecting portion of the external ear â see ear illustration.