Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun electronic_countermeasures

1 sense of electronic countermeasures

Sense 1
electronic countermeasures, ECM -- (electronic warfare undertaken to prevent or reduce an enemy's effective use of the electromagnetic spectrum)
       => electronic warfare, EW -- (military action involving the use of electromagnetic energy to determine or exploit or reduce or prevent hostile use of the electromagnetic spectrum)

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