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vasospasm

American  
[vas-oh-spaz-uhm, vey-zoh-] / ˈvæs oʊˌspæz əm, ˈveɪ zoʊ- /

noun

  1. sudden constriction of an artery, leading to a decrease in its diameter and in the amount of blood it can deliver.

Etymology

Origin of vasospasm

First recorded in 1900–05; vaso- + spasm

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For example, coronary vasospasm, a condition in which the arteries feeding the heart quite literally spasm and prevent the heart muscle from getting oxygen, often happens early in the morning.

From Washington Post • Mar. 6, 2023

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.