polyphase

See also: polyphasé

English

Etymology tree

Proto-Indo-European *pleh₁-

Proto-Indo-European *polh₁ús

Ancient Greek πολῠ́ς (polŭ́s)lbor.

English poly-

English phase

English polyphase

From poly- + phase.

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polyphase (comparative more polyphase, superlative most polyphase)

(electricity) Of, pertaining to, or involving multiple alternating currents that have the same frequency but differ in phase.
- 1963 November, “British achievements in electric traction”, in Modern Railways, page 313:
  In the past there had been several attempts to embody in locomotives some form of rotating machine to convert single-phase a.c. at supply frequency to polyphase a.c. at variable frequency, in order to achieve the necessary variable speed characteristic.
(physics) Of, pertaining to, or consisting of multiple phases of matter

of, pertaining to, or involving multiple alternating currents

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