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

Example Sentences

Recent Examples on the Web The muscular wall of blood vessels contracts in a process known as vasoconstriction. Dr. Michael Daignault, USA TODAY, 19 May 2022 This vasoconstriction reduces blood flow to the affected area, which effectively limits inflammation and tampers pain. Dr. Michael Daignault, USA TODAY, 19 May 2022 The new report notes that triptans can cause what’s called vasoconstriction, which is the technical term for the narrowing of blood vessels. Maggie O'neill,, 11 July 2019 Second, the pattern of injury does not appear to be frostbite, as the cold causes vasoconstriction that would be most prominent in the toes and the cold air touches more of the circumference of toes. San Diego Union-Tribune, 7 Aug. 2019 Mattos says the purpose is to induce vasoconstriction—a tightening of the blood vessels—to keep from bleeding out. Kevin Dupzyk, Popular Mechanics, 1 Feb. 2019 The vasoconstriction from products with caffeine can reduce puffiness, and cooling products can help reduce inflammation and promote blood flow. Talia Abbas, SELF, 8 Aug. 2018 The scientific term for this temporary narrowing of arteries is reversible cerebral vasoconstriction syndrome. Author: James Gorman, Anchorage Daily News, 10 Apr. 2018 There’s some vasoconstriction, some possible effects on blood pressure. Jia Tolentino, The New Yorker, 7 May 2018 See More

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

Word History


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

Dictionary Entries Near vasoconstriction

Cite this Entry

“Vasoconstriction.” Dictionary, Merriam-Webster, Accessed 5 Dec. 2022.

Medical Definition



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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