Vasodilation

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
Dilation or widening of the blood vessels. countable, uncountable
2
dilation of blood vessels (especially the arteries) wordnet

Synonyms

vasodilatation vasodilatation

Antonyms

arterioconstriction vasoconstriction

Etymology

From vaso- + dilation.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.