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 Sponges also have cells called pinacocytes that contract in unison like muscle cells to squeeze the animal and expunge waste or unwanted debris; pinacocytes have some sensory machinery that responds to nitric oxide, a vasodilator. Quanta Magazine, 4 Nov. 2021 In addition to helping prevent forward-head posture, inhaling through your nose expresses nitric oxide, a natural vasodilator that increases oxygenation. Dana Santas, CNN, 23 June 2021 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, 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, 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, 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

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The first known use of vasodilator was in 1881

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Cite this Entry

“Vasodilator.” Dictionary, Merriam-Webster, Accessed 27 Jan. 2022.

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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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