vasoconstriction

noun

: 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 9 Oct. 2026.

Medical Definition

vasoconstriction

noun
: narrowing of the lumen of blood vessels especially as a result of vasomotor action

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