What is "supinate"

1831, "to place the hand so that the palm is turned upward," from Latin supinatus, past participle of supinare "to bend back," related to supinus (see supine). Related: Supinated; supinating; supinator.

vb. 1 (context transitive anatomy English) To twist the forearm so as to turn the palm of the hand backwards if the forearm is pointing up, upwards if the forearm is horizontal, or forwards if the arm is pointing down; to twist the forarm by contracting the biceps brachii; to twist the right forearm clockwise or the left forearm counterclockwise. 2 (context transitive anatomy English) To twist the foot so the weight is on the outer edge.

v. turn (the hand or forearm) so that the back is downward or backward, or turn out (the leg)