What does elint mean?
Elint is a specialized noun denoting electronic intelligence: information obtained by intercepting and analyzing non-communications electromagnetic emissions, most notably radar signals, though also navigation beacons, telemetry, and other electronic transmissions. Coined during the mid-twentieth century as an abbreviation of "electronic intelligence," the term has become fully lexicalized in military and intelligence circles, where it sits within the broader field of signals intelligence (sigint) alongside comint (communications intelligence). Elint gathering is typically performed by dedicated satellites, aircraft, ships, and ground stations that passively listen for hostile radars in order to identify their type, location, capabilities, and operating patterns. The resulting data underpins threat assessment, the planning of jamming and evasive tactics, and the mapping of air-defense networks. Because it concerns passive collection rather than communications interception, elint occupies a distinct niche in the tradecraft vocabulary and remains essential to modern strategic and tactical reconnaissance.
nounIntelligence information derived from the interception and analysis of non-communications electromagnetic signals, such as radar and navigation transmissions.
- Technical intelligence gathered from intercepting and analyzing non-communications electromagnetic radiations, particularly radar and other military electronic emissions.
"The reconnaissance aircraft was fitted with elint equipment to map the enemy's radar network."
"The satellite's elint payload catalogued every air-defense radar along the border."
"Analysts compared fresh elint with archived recordings to detect changes in the adversary's early-warning network."
As an uncountable mass noun, elint has no plural form; quantity is expressed through phrases such as "items of elint" or "elint collections."
"The archive holds thousands of items of elint dating back to the 1960s."
Elint isn't a misspelling — it's a Cold War-era acronym (ELectronic INTelligence) that became a real dictionary word, spoken aloud by spies who never say the long version anymore.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of elint
Elint originated in the twentieth century as a contraction of "electronic intelligence," formed on the model of earlier intelligence-community abbreviations such as comint (communications intelligence). It emerged during the era of Cold War electronic reconnaissance, when airborne and satellite platforms routinely collected foreign radar emissions for analysis. Its underlying root is the Greek-derived element "electro-" (from elektron, amber), which also yields cognates such as electronic, electron, and electronics. Over time the abbreviation has been accepted as a standard word in dictionaries of English, written uncountably and usually in lowercase.
How elint is actually used
Elint is a technical term used almost exclusively in military, intelligence, and defense-industry contexts. Like related acronyms such as comint and sigint, it functions as an uncountable noun and is typically written in lowercase in running text, though uppercase (ELINT) appears in official documents. It carries no figurative or casual usage.
Easily confused with elint
Sigint is the broader category of signals intelligence, of which elint (non-communications emissions like radar) forms one part, alongside comint (communications intercepts).
Comint refers to intelligence from intercepted communications such as radio or phone traffic, whereas elint concerns non-communication electromagnetic emissions such as radar.