/ Dictionary / Index S supinate: Meaning and Definition of Find definitions for: su•pi•nate Pronunciation: (s'pu-nāt"), [key] — v., -nat•ed, -nat•ing. —v.t. to turn to a supine position; rotate (the hand or foot) so that the palm or sole is upward. —v.i. to become supinated. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: supinate (Thesaurus) superwoman supination Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language