Main Entry: poly·pha·sic

Pronunciation: \-ˈfā-zik\

Function: adjective

1 : of, relating to, or having more than one phase <polyphasic evoked potentials>—compare diphasic b, monophasic 1
2 : having several periods of activity interrupted by intervening periods of rest in each 24 hours <an infant is essentially polyphasic>