electronic countermeasures

plural noun

the use of electronic technology to jam and deceive enemy radars, especially those used for air defense and interception. Abbreviation: ECM

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Origin of electronic countermeasures

First recorded in 1965–70

Words nearby electronic countermeasures

electronic brain, electronic bulletin board, electronic cell counter, electronic cinematography, electronic configuration, electronic countermeasures, electronic crime, electronic data processing, electronic editing, electronic engineering, electronic fetal monitor
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for electronic countermeasures

electronic countermeasures

pl n

military (in electronic warfare) actions intended to interfere with an enemy's use of electromagnetic radiation equipment
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