Pronunciation: (prō-nā'shun), [key]
1. rotation of the hand or forearm so that the surface of the palm is facing downward or toward the back (opposed to supination).
2. a comparable motion of the foot consisting of abduction followed by eversion.
3. the position assumed as the result of this rotation.
4. any similar motion of the limbs or feet of animals.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.