oxytocin oxytocic drug • oxytocous · · · Info · Definitions · Synonyms · Characters · · oxytocin · · Text Latin · · Script 8 · · Length 4 · · Syllables Definitions · · · (noun) hormone secreted by the posterior pituitary gland (trade name Pitocin); stimulates contractions of the uterus and ejection of milk. Synonyms: Pitocin. · · Noun Definition 1 Synonyms · · · pitocin · · Synonym 1 Characters · · c latin small letter c U+0063 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074 x latin small letter x U+0078 y latin small letter y U+0079