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[vas-oh-dahy-ley-ter, -di-, -dahy-ley-, vey-zoh-] /ˌvæs oʊ daɪˈleɪ tər, -dɪ-, -ˈdaɪ leɪ-, ˌveɪ zoʊ-/
noun, Physiology, Pharmacology
a nerve or drug that causes vasodilatation.
Origin of vasodilator
1880-85; vaso- + dilator Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for vasodilator
  • If you are not able to exercise, your doctor may give you a medicine called a vasodilator, which dilates your heart arteries.
  • Another simple, inorganic gas also acts as a vasodilator: hydrogen sulfide, the source of the smell of rotten eggs.
  • The gel's active ingredient, glyceryl nitrate, has been used for as a vasodilator for over a century.
  • Additional vasodilator mechanisms must therefore be involved.
British Dictionary definitions for vasodilator


a drug, agent, or nerve that can cause dilatation (vasodilatation) of the walls of blood vessels
causing vasodilatation
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
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vasodilator in Medicine

vasodilator va·so·di·la·tor (vā'zō-dī-lā'tər, -dĭ-, -dī'lā-)
Something, such as a nerve or drug, that causes vasodilation. adj.
Producing vasodilation.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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