(Of a missile) able to detect and home in on infrared radiation emitted by a target, such as the exhaust vent of a jet aircraft.
- But witnesses at the airport last night reported that helicopters and aircraft were now taking off using flares, the heat from which deflects heat-seeking missiles targeting the aircraft.
- In this case, though, it appeared it gave the crew almost no time to react, to dispense flares, or take other countermeasures that might have been able to evade these heat-seeking missiles.
- Do their aircraft really have heat-seeking missile countermeasures?
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