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two-phase

American  
[too-feyz] / ˈtuˈfeɪz /

adjective

Electricity.
  1. diphase.


two-phase British  

adjective

  1. Also: quarter-phase.  (of an electrical circuit, device, etc) generating or using two alternating voltages of the same frequency, displaced in phase by 90°

"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

Etymology

Origin of two-phase

First recorded in 1895–1900

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Part of that business supplies two-phase cooling solutions to data centers.

From Barron's Feb. 20, 2026

At much smaller scales, however, foams are considered "two-phase" materials, made of bubbles suspended in a liquid or solid background.

From Science Daily Jan. 15, 2026

Some companies that offer two-phase cooling are currently switching to PFAS-free refrigerants.

From BBC Dec. 22, 2025

The Times asked two high-ranking baseball officials with experience in stadium management to estimate how long such a two-phase assessment project should take.

From Los Angeles Times Feb. 18, 2025

Governor Dixy Lee Ray didn’t approve of the two-phase plan.

From "Mountain of Fire" by Rebecca E. F. Barone

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