vasodilation

noun

va·​so·​di·​la·​tion ˌvā-zō-dī-ˈlā-shən How to pronounce vasodilation (audio)
-də-
variants or vasodilatation
: widening of the lumen of blood vessels

Examples of vasodilation 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.
The medications may promote vasodilation, or widening of the blood vessels, which helps improve blood flow. Fran Kritz, Verywell Health, 4 June 2026 Holistic Practices With Real Physiological Basis Warming spices like ginger, turmeric, cayenne contain compounds that promote vasodilation and improve microcirculation. Allison Palmer, Miami Herald, 28 May 2026 Cold triggers vasoconstriction followed by vasodilation, training the vascular system and activating brown adipose tissue. Allison Palmer, Kansas City Star, 28 May 2026 High temps trigger vasodilation—the technical term for blood vessel expansion. Caroline Tien, SELF, 3 Feb. 2026 See All Example Sentences for vasodilation

Word History

First Known Use

1908, in the meaning defined above

Time Traveler
The first known use of vasodilation was in 1908

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Cite this Entry

“Vasodilation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vasodilation. Accessed 10 Jun. 2026.

Medical Definition

vasodilation

noun
va·​so·​di·​la·​tion ˌvā-zo-dī-ˈlā-shən How to pronounce vasodilation (audio)
variants or vasodilatation
: widening of the lumen of blood vessels

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