Dictionary.net

(electricity) of an electrical system that uses or generates two or more alternating voltages of the same frequency but differing in phase angle

of an electrical system that uses or generates two or more alternating voltages of the same frequency but differing in phase angle

Having or producing two or more phases; multiphase; as, a polyphase machine, a machine producing two or more pressure waves of electro-motive force, differing in phase; a polyphase current.

Having or producing two or more phases; multiphase; as, a polyphase machine, a machine producing two or more pressure waves of electro-motive force, differing in phase; a polyphase current.