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[dee-en-er-jahyz] /diˈɛn ərˌdʒaɪz/
verb (used with object), de-energized, de-energizing.
to deprive of electrical energy or exhaust the electrical energy from:
Turning off the ignition de-energizes the spark plugs.
Also, especially British, de-energise.
Origin of de-energize
First recorded in 1885-90; de- + energize Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for de-energize
Historical Examples
  • The passive and contemplative following of thought, my own or other people's, must not de-energize my sympathies and my will.

    Julia Ward Howe Laura E. Richards
  • A broken rail will also generally open the circuit and de-energize the relay.

    The Invention of the Track Circuit American Railway Association
British Dictionary definitions for de-energize


(transitive) (electrical engineering) to disconnect (an electrical circuit) from its source
Derived Forms
de-energization, de-energisation, noun
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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