three-phase

[ three-feyz ]

adjectiveElectricity.
  1. of or relating 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.

Origin of three-phase

1
First recorded in 1890–95

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

British Dictionary definitions for three-phase

three-phase

adjective
  1. (of an electrical system, circuit, or device) having, generating, or using three alternating voltages of the same frequency, displaced in phase by 120°

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