vasopressin(redirected from osmoreceptors)
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A hormone secreted by the posterior lobe of the pituitary gland that constricts blood vessels, raises blood pressure, and reduces excretion of urine. A synthetic form of the hormone is used as an antidiuretic drug, especially in the treatment of diabetes insipidus. Also called antidiuretic hormone.
(Biochemistry) a polypeptide hormone secreted by the posterior lobe of the pituitary gland. It increases the reabsorption of water by the kidney tubules and increases blood pressure by constricting the arteries. Also called: antidiuretic hormone Chemical name: beta-hypophamine Compare oxytocin
[from Vasopressin, a trademark]
vas•o•pres•sin(ˌvæs oʊˈprɛs ɪn)
a hormone released by the posterior pituitary gland that constricts small blood vessels and increases the absorption of water by the kidney. Also called antidiuretic hormone, ADH.
[1928; orig. trademark]
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|Noun||1.||vasopressin - hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus; affects blood pressure by stimulating capillary muscles and reduces urine flow by affecting reabsorption of water by kidney tubules|
pressor, vasoconstrictive, vasoconstrictor - any agent that causes a narrowing of an opening of a blood vessel: cold or stress or nicotine or epinephrine or norepinephrine or angiotensin or vasopressin or certain drugs; maintains or increases blood pressure
n. vasopresina, hormona liberada por la pituitaria posterior que aumenta la reabsorción de agua en el riñón elevando la presión arterial.