• synonyms


[sing-guh l-feyz]
adjective Electricity.
  1. noting or pertaining to a circuit having an alternating current with one phase or with phases differing by 180°.
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Origin of single-phase

First recorded in 1895–1900
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for single-phase

Historical Examples

  • A Martin rotary converter to be operated from a single-phase line is shown in Figure 147.

    Motion Picture Operation, Stage Electrics and Illusions

    Henry C. Horstmann

  • Simple repulsion motors and single-phase induction motors that start as repulsion motors are reversed by shifting the brushes.

  • If single-phase or two-phase current is transmitted, each cable should contain the two conductors that go to make up a circuit.

British Dictionary definitions for single-phase


  1. (of a system, circuit, or device) having, generating, or using a single alternating voltage
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012