electronic countermeasures

American  

plural noun

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

---

electronic countermeasures British  

plural noun

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

---

Etymology

Origin of electronic countermeasures

First recorded in 1965–70

Example Sentences

See Examples For:

electronic countermeasures

Ukraine’s air defense, layered over distance and altitude, includes a wide range of kinetic and electronic countermeasures.

From The Wall Street Journal ● Nov. 5, 2025

They included drones linked to operators by fibre-optic wires - which are impossible to jam with electronic countermeasures.

From BBC ● Mar. 17, 2025

Toggling between the high tech and low tech as I explained earlier is using electronic countermeasures to shut down the drones.

From Salon ● Apr. 17, 2024

Soldiers and civilian volunteers make these in garage workshops, experimenting and inventing with 3-D printed materials, explosives and custom-built software to try to avoid Russian electronic countermeasures.

From New York Times ● May 8, 2023

Zolan, a member of our group is an expert in electronic countermeasures, counter-countermeasures, and so on.

From The Universe — or Nothing by Moldeven, Meyer