Definition of vasodilator in US English:

vasodilator

noun

  • Something that promotes the dilatation of blood vessels.

    ‘nitric oxide is a potent pulmonary vasodilator’

Pronunciation

vasodilator

/ˌvāzōˈdīˌlādər//ˌveɪzoʊˈdaɪˌleɪdər/