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1. A short polypeptide hormone, C43H66N12O12S2, released from the posterior lobe of the pituitary gland, that stimulates the contraction of smooth muscle of the uterus during labor and facilitates ejection of milk from the breast during nursing.
2. A synthetic form of this hormone, used as a drug to induce labor and to control postpartum hemorrhage.
(Biochemistry) a polypeptide hormone, secreted by the pituitary gland, that stimulates contractions of the uterus or oviduct and ejection of milk in mammals; alphahypophame: used therapeutically for aiding childbirth. Formula: C43H68N12O12S2. Compare vasopressin
ox•y•to•cin(ˌɒk sɪˈtoʊ sən)
a pituitary hormone that stimulates contraction of the smooth muscles of the uterus to induce labor.
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|Noun||1.||oxytocin - hormone secreted by the posterior pituitary gland (trade name Pitocin); stimulates contractions of the uterus and ejection of milk|
n. oxitocina, ocitocina, hormona pituitaria que estimula las contracciones del útero.