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three-phase

[three-feyz] /ˈθriˌfeɪz/
adjective, Electricity
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
1890-1895
1890-95
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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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°
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
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