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
Origin of electronic countermeasures
First recorded in 1965–70
Words nearby electronic countermeasures
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