polyphasic: Meaning and Definition of

pol•y•pha•sic

Pronunciation: (pol"ē-fā'zik), [key]
— adj.
  1. having more than two phases.
  2. habitually doing more than one thing at a time: a polyphasic personality.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.