from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Something, such as a nerve or drug, that causes vasodilation.

from The Century Dictionary.

  • Serving to dilate or relax blood-vessels when stimulated, as a nerve. See vasomotor.
  • noun That which causes dilatation of the blood-vessels: applied to nerves and certain drugs.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Medicine & Physiology) A substance which causes dilation of blood vessels.
  • adjective (Physiol.) Causing dilation or relaxation of the blood vessels. These nerves are also called vaso-inhibitory, and vasohypotonic nerves, since their stimulation causes relaxation and rest.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun pharmacology A drug or chemical agent that causes dilation of the blood vessels thereby reducing blood pressure.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a drug that causes dilation of blood vessels


Sorry, no etymologies found.



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