Meaning of “tripwire” in the English Dictionary

british dictionary

"tripwire" in British English

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tripwirenoun [ C ]

uk /ˈtrɪp.waɪər/ us /ˈtrɪp.waɪr/

a wire stretched low above the ground that operates an explosive device, a gun, or a device for catching animals when it is touched by the foot of a person or animal

(Definition of “tripwire” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)