antidiuretic-hormone

Science Dictionary
antidiuretic hormone   (ān'tē-dī'ə-rět'ĭk, ān'tī-)  Pronunciation Key 
A polypeptide hormone secreted by the posterior portion of the pituitary gland that constricts blood vessels, raises blood pressure, and reduces excretion of urine. Also called vasopressin.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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