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Meaning of three-phase

three-phase

Pronunciation: (thrē'fāz"), [key]
— adj. Elect.
  1. of or pertaining to a circuit, system, or device that is energized by three electromotive forces that differ in phase by one third of a cycle or 120°.
  2. having three phases.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.