Medical Dictionary

polyphasic

adj poly·pha·sic \-ˈfā-zik\

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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