fuse¹/fjuz; fjuːz/ n [C] 1 a short wire inside a piece of electrical equipment that melts if too much electricity passes through it 〔电器中的〕保险丝: The fuse has blown. (=it has melted and stopped the electrical equipment from working) 保险丝断了。 2 a part that is connected to a bomb, FIREWORK etc, that delays or starts the explosion 〔炸弹、烟火等的〕导火线; 导火索