8 letters · 20 points in Scrabble
noun hormone secreted by the posterior pituitary gland (trade name Pitocin); stimulates contractions of the uterus and ejection of milk
originFrom oxytocic, from Ancient Greek ὀξύς (oxús, “swift”) + τόκος (tókos, “childbirth”, from τίκτω (tíktō, “I give birth”)).
Etymology from Wiktionary, CC BY-SA 3.0