vasodilation
Concise Oxford English Dictionary © 2008 Oxford University Press:
vasodilation /veɪzəʊdʌɪˈleɪʃn/ (also vasodilatation /-ˌdʌɪleɪˈteɪʃ(ə)n/)
▶noun the dilatation of blood vessels, which decreases blood pressure.
– derivatives
vasodilator noun,
vasodilatory adjective.
vasodilator noun,
vasodilatory adjective.
'vasodilation' also found in these Oxford entries:

