suicide vest
noun [ C ] uk/ˈsuː.ɪ.saɪd ˌvest/ us/ˈsuː.ɪ.saɪd ˌvest/ (also bomb vest, /ˈbɒm ˌvest/ /ˈbɑːm ˌvest/)
自杀式炸弹背心
a piece of clothing worn on the upper body with a bomb or bombs attached to it, used to cause an explosion that will kill the person wearing it as well as others
They foiled an attack by a terrorist wearing a suicide vest. 他们挫败了一起恐怖分子企图使用自杀式炸弹背心的袭击。