pronate

To turn or rotate one’s hand and forearm so that the palm faces down if the forearm is horizontal, back if the arm is pointing down, or forward if the forearm is pointing up; to twist the right forearm counterclockwise or the left forearm c

To twist the foot so that if walking the weight would be borne on the inner edge of the foot.

To become pronated.

Somewhat prone; inclined.

pronate trees

Hold the cello bow with the hand in a pronate position over the frog.