TRIPWIRE
Meaning of TRIPWIRE in English
/ ˈtrɪpwaɪə(r); NAmE / noun
a wire that is stretched close to the ground as part of a device for catching sb/sth if they touch it
Oxford Advanced Learner's English Dictionary.
Оксфордский английский словарь для изучающик язык на продвинутом уровне.
2005