[vas-oh-pres-er, vey-zoh-]
noun Biochemistry, Pharmacology.
  1. a hormone, as epinephrine, or other agent that raises the blood pressure by causing contraction of the arteriole muscles, narrowing the arteriole passage.

Origin of vasopressor

First recorded in 1925–30; vaso- + pressor Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for vasopressor


  1. causing an increase in blood pressure by constricting the arteries
  1. a substance that has such an effect
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

vasopressor in Medicine


  1. Producing constriction of the blood vessels and a consequent rise in blood pressure.
  1. An agent that causes a rise in blood pressure.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.