pron-

1. To turn the hand or forearm so that the palm faces downward.
2. To turn into a prone position; to rotate (the hand or forearm) so that the surface of the palm is downward or toward the back.
3. To turn (the sole of the foot) outward so that the inner edge of the foot bears the weight when standing.
4. To assume or place in a prone position.

The act of assuming the prone position, or the state of being prone.

Applied to the hand, the act of turning the palm posteriorly (or inferiorly when the forearm is flexed), performed by medial rotation of the forearm.

Applied to the foot, a combination of eversion and abduction movements taking place in the tarsal and metatarsal joints and resulting in lowering of the medial margin of the foot, hence of the longitudinal arch.

1. Horizontal with the face downward.
2. Denoting the hand with the palm turned downward; the opposite of supine.

In animals, walking on the hands and feet or resting with the body in a horizontal position.

A goniometer used to measure pronation and supination of the forearm.

Grazing forward in a pasture.

Sexually potent only in the prone position.