From Biology-Online Dictionary | Biology-Online Dictionary


1. The upper or anterior extremity of the animal body, containing the brain and the organs of sight, hearing, taste, and smell.

2. The upper, anterior, or larger extremity, expanded or rounded, of any body, organ, or other anatomical structure.

3. The rounded extremity of a bone.

4. That end of a muscle which is attached to the less movable part of the skeleton.

Synonym: head.

Origin: L.