pronation Meaning, Definition & Usage

  1. noun rotation of the hands and forearms so that the palms face downward

WordNet

Pro*na"tion noun
Etymology
Cf. F. pronation.
Definitions
  1. (Physiol.) (a) The act of turning the palm or palmar surface of the forefoot downward. (b) That motion of the forearm whereby the palm or palmar, surface is turned downward. (c) The position of the limb resulting from the act of pronation. Opposed to supination.

Webster 1913