vasodilation

noun
va·so·di·la·tion | \ˌvā-zō-dī-ˈlā-shən, -də-\
variants: or vasodilatation \ˌvā-zō-ˌdi-lə-ˈtā-shən, -ˌdī-lə- \

Definition of vasodilation 

: widening of the lumen of blood vessels

Examples of vasodilation in a Sentence

Recent Examples on the Web

For decades to come, migraine pain would be blamed primarily on the dilation of blood vessels (vasodilation) in the brain. David Noonan, Scientific American, "New Nerve Drugs May Finally Prevent Migraine Headaches," 1 Dec. 2015

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

First Known Use of vasodilation

1908, in the meaning defined above

History and Etymology for vasodilation

vaso(dilator) + dilation or dilatation

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The first known use of vasodilation was in 1908

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More Definitions for vasodilation

vasodilation

noun
va·so·di·la·tion | \ˌvā-zo-dī-ˈlā-shən \
variants: or vasodilatation \-ˌdil-ə-ˈtā-shən, -ˌdī-lə- \

Medical Definition of vasodilation 

: widening of the lumen of blood vessels

More from Merriam-Webster on vasodilation

Britannica.com: Encyclopedia article about vasodilation

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