/ Dictionary / Index P Pitocin: Meaning and Definition of Find definitions for: Pi•to•cin Pronunciation: (pi-tō'sin), [key] — Pharm., Trademark. Pharm.,Trademark. a brand of oxytocin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pitocin (Thesaurus) pitman piton Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language