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English definition of “heat-seeking”

heat-seeking

adjective [before noun]     /ˈhiːtˌsiː.kɪŋ/
describes a weapon that can direct itself towards something hot, especially the hot engine of an aircraft: heat-seeking missilesArms and munitions in general
(Definition of heat-seeking adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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