IPA: /ˌveɪzoʊdaɪˈleɪʃən/
KK: /ˌvæzoʊdaɪˈleɪʃən/
The process of blood vessels becoming wider, which allows more blood to flow through them.
During exercise, vasodilation helps increase blood flow to the muscles.
Vasodilation → It is formed from "vaso-" (from Latin "vas" meaning vessel) and "dilation" (from Latin "dilatare" meaning to spread out or expand). The word describes the process of blood vessels expanding or widening.
Think of 'vessel' ('vaso-') expanding or 'spreading out' ('dilation') — that's what vasodilation means.