Breadcrumb Home > 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: dishabille Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language