Definitions for vasodilatorˌvæs oʊ daɪˈleɪ tər, -dɪ-, -ˈdaɪ leɪ-, ˌveɪ zoʊ-

This page provides all possible meanings and translations of the word vasodilator

Random House Webster's College Dictionary

vas•o•di•la•torˌvæs oʊ daɪˈleɪ tər, -dɪ-, -ˈdaɪ leɪ-, ˌveɪ zoʊ-(n.)

  1. any of various agents, as certain nerves or drugs, that relax or widen blood vessels and thereby maintain or lower blood pressure.

    Category: Pharmacology, Physiology

Origin of vasodilator:



Princeton's WordNet

  1. vasodilator, vasodilative(noun)

    a drug that causes dilation of blood vessels


  1. vasodilator(Noun)

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

Webster Dictionary

  1. Vasodilator(adj)

    causing dilation or relaxation of the blood vessels; as, the vasodilator nerves, stimulation of which causes dilation of the blood vessels to which they go. These nerves are also called vaso-inhibitory, and vasohypotonic nerves, since their stimulation causes relaxation and rest


  1. Vasodilation

    Vasodilation refers to the widening of blood vessels. It results from relaxation of smooth muscle cells within the vessel walls, in particular in the large veins, large arteries, and smaller arterioles. In essence, the process is the opposite of vasoconstriction, which is the narrowing of blood vessels. When blood vessels dilate, the flow of blood is increased due to a decrease in vascular resistance. Therefore, dilation of arterial blood vessels decreases blood pressure. The response may be intrinsic or extrinsic. In addition, the response may be localized to a specific organ, or it may be systemic. Drugs that cause vasodilation are termed vasodilators.


Find a translation for the vasodilator definition in other languages:

Select another language:

Discuss these vasodilator definitions with the community:


Use the citation below to add this definition to your bibliography:


"vasodilator." STANDS4 LLC, 2014. Web. 23 Nov. 2014. <>.

Are we missing a good definition for vasodilator?

The Web's Largest Resource for

Definitions & Translations

A Member Of The STANDS4 Network

Nearby & related entries:

Alternative searches for vasodilator: