[pro.na.tion] n [pronate, fr. LL pronatus, pp. of pronare to bend forward, fr. L pronus] (1666) 1: rotation of the hand and forearm so that the palm faces backwards or downwards
2: rotation of the medial bones in the midtarsal region of the foot inward and downward so that in walking the foot tends to come down on its inner margin -- pro.nate vb