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Wiktionary
antidiuretic hormone

n. a hormone secreted by the posterior pituitary gland

WordNet
antidiuretic hormone

n. 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 [syn: vasopressin, ADH, Pitressin]

Usage examples of "antidiuretic hormone".

The posterior pituitary extract had an opposite effect and was therefore felt to contain an antidiuretic hormone, usually referred to by the abbreviation ADH.