va·​so·​di·​la·​tor | \ˌvā-zō-dī-ˈlā-tər, -ˈdī-ˌlā- \

Definition of vasodilator 

: an agent (such as a parasympathetic nerve fiber or a drug) that induces or initiates vasodilation

Examples of vasodilator in a Sentence

Recent Examples on the Web

Instead, a growing pile of studies suggested that CGRP was not just a vasodilator, but a previously unknown, pain-signaling neurotransmitter. Emily Underwood, Science | AAAS, "Will antibodies finally put an end to migraines?," 18 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vasodilator.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of vasodilator

1881, in the meaning defined above

History and Etymology for vasodilator

vaso- + dilator, after French vaso-dilateur

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Time Traveler for vasodilator

The first known use of vasodilator was in 1881

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More Definitions for vasodilator


va·​so·​di·​la·​tor | \ˌvā-zō-ˈdī-ˌlāt-ər \

Medical Definition of vasodilator 

(Entry 1 of 2)

: an agent (as a parasympathetic nerve fiber or a drug) that induces or initiates vasodilation


variants: also vasodilatory \-​ˈdil-​ə-​ˌtōr-​ē, -​ˈdī-​lə-​, -​ˌtȯr-​ \

Medical Definition of vasodilator (Entry 2 of 2)

: relating to, inducing, or initiating vasodilation a drug with a vasodilator effect

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having a pattern of small flowers

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