vasoconstriction

noun

va·​so·​con·​stric·​tion ˌvā-zō-kən-ˈstrik-shən How to pronounce vasoconstriction (audio)
: narrowing of the lumen of blood vessels

Examples of vasoconstriction in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Cold triggers vasoconstriction followed by vasodilation, training the vascular system and activating brown adipose tissue. Allison Palmer, Kansas City Star, 28 May 2026 This is because very cold water causes a vasoconstriction of the digestive tract, which reduces blood flow and can slow absorption. Sophia Dyer, Condé Nast Traveler, 25 May 2026 Headaches Caffeine causes vasoconstriction, the medical term for the narrowing of blood vessels. Jillian Kubala, Health, 13 May 2026 It was determined Megan had suffered from extreme exhaustion, dehydration, vasoconstriction, and low metabolic levels. Jami Ganz, New York Daily News, 27 Apr. 2026 See All Example Sentences for vasoconstriction

Word History

Etymology

vaso- + constriction, after French vaso-constriction

First Known Use

1899, in the meaning defined above

Time Traveler
The first known use of vasoconstriction was in 1899

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Cite this Entry

“Vasoconstriction.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vasoconstriction. Accessed 29 May. 2026.

Medical Definition

vasoconstriction

noun
va·​so·​con·​stric·​tion -kən-ˈstrik-shən How to pronounce vasoconstriction (audio)
: narrowing of the lumen of blood vessels especially as a result of vasomotor action

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