polyphasic


poly·pha·sic

adjective \ˌpä-lē-ˈfā-zik\

Definition of POLYPHASIC

:  consisting of two or more phases

First Known Use of POLYPHASIC

1922

poly·pha·sic

adjective \-ˈfā-zik\   (Medical Dictionary)

Medical Definition of POLYPHASIC

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>

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