時じ限げん爆ばく弾だんじげんばくだんMeanings1nountime bombA bomb set to explode at a predetermined time. Can also be used figuratively for a situation that will cause trouble later.犯はん人にんはビルに時じ限げん爆ばく弾だんを仕し掛かけた。The criminal planted a time bomb in the building.
