va·​so·​di·​la·​tor | \ ˌvā-zō-dī-ˈlā-tər How to pronounce vasodilator (audio) , -ˈdī-ˌlā- How to pronounce vasodilator (audio) \

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 These characteristics are likely to lower hypertension, the study said, as hypertensionmay be caused by underproduction of vasodilators that help blood flow, and thickening arteries. Kristen Rogers, CNN, "Growing up in a high altitude area may lower chronic disease risk, study finds," 23 Apr. 2020 Manganese is a vasodilator with anti-oxidative properties that helps to improve blood flow to the brain as well as fight free-radicals. Adele Jackson-gibson, Good Housekeeping, "Is Chicory Root Coffee Good for You? Here's What to Know About Its Health Benefits," 3 Feb. 2020 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.

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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

Time Traveler

The first known use of vasodilator was in 1881

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Cite this Entry

“Vasodilator.” Dictionary, Merriam-Webster, Accessed 21 Jan. 2021.

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More Definitions for vasodilator


va·​so·​di·​la·​tor | \ ˌvā-zō-ˈdī-ˌlāt-ər How to pronounce vasodilator (audio) \

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-​ How to pronounce vasodilator (audio) \

Medical Definition of vasodilator (Entry 2 of 2)

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

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