Meaning of vasopressor

vas•o•pres•sor

Pronunciation: (vas'ō-pres"ur, vā'zō-), [key]
— n. Biochem., Pharm.
  1. 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.
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