'ADH' definitions:

Definition of 'ADH'

(from WordNet)
noun
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, antidiuretic hormone, ADH, Pitressin]