
[Latin supīnāre, supīnāt-, from supīnus, backward. See supine.]
supination su'pi·na'tion n.To assume, or to be placed in, a supine position.
su'pi·na'tion n.In humans, rotation of the forearm to bring the palm to face upward; in animals, the action is best in primates but is still significant in laboratory animals, cats and dogs.