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Dictionary

vas•o•pres•sor

Pronunciation: (vas'ō-pres"ur, vā'zō-), [key]
—n. Biochem., Pharm.
a hormone, as epinephrine, or other agent that raises the blood pressure by causing contraction of the arteriole muscles, narrowing the arteriole passage.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

vasopressin

vasospasm

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