polyphase

In electricity, having components of various phase: referring to an alternating-current system in which several currents of equal frequency are used, which differ from one another in phase by a definite fraction of a period, as, in the three-phase system, three currents differing by one third period, in a quarter-phase system, two currents differing by one quarter period.

Having or producing two or more phases; multiphase.

Of, pertaining to, or involving multiple alternating currents that have the same frequency but differ in phase

Of, pertaining to, or consisting of multiple phases of matter

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