[ dee-en-er-jahyz ]
/ diˈɛn ərˌdʒaɪz /

verb (used with object), de-en·er·gized, de-en·er·giz·ing.

to deprive of electrical energy or exhaust the electrical energy from: Turning off the ignition de-energizes the spark plugs.
Also especially British, de-en·er·gise.

Origin of de-energize

First recorded in 1885–90; de- + energize Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for de-energize

  • 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



/ (diːˈɛnəˌdʒaɪz) /


(tr) electrical engineering to disconnect (an electrical circuit) from its source

Derived Forms

de-energization or 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