The Collaborative International Dictionary of English v.0.48:
Oxytocic \Ox`y*toc"ic\, a. [Gr. 'oxy`s sharp, quick + ???? birth.] (Med.) Promoting uterine contractions, or parturition. -- n. An oxytocic medicine or agent. [1913 Webster]WordNet (r) 3.0 (2006):
oxytocic n 1: a drug that induces labor by stimulating contractions of the muscles of the uterus [syn: oxytocic, oxytocic drug]