D defs.my
Entry 1 sense Webster, 1913

Polyphase

/päl'-ēfˌ-āzˌ/ · Pol·y·phase · IPA /pˈɑlˌiːfˌeɪz/
01 a. Having or producing two or more phases; multiphase; as, a polyphase machine, a machine producing two or more pressure waves of electro-moti…
  1. 1.
    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.(Elec.)