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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
(tr) electrical engineering to disconnect (an electrical circuit) from its source
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