/fju:z ||; fjuz/noun[C] 1 a small piece of wire in an electrical system, machine, etc that melts and breaks if there is too much power. This stops the flow of electricity and prevents fire or damage 保险丝;熔线: A fuse has blown -- that's why the house is in darkness. 保险丝烧断了──所以屋里一片漆黑。That plug needs a 15 amp fuse. 那个插头需要一根15安培的保险丝。 ☞picture at plug 见plug插图
2 a piece of rope, string, etc or a device that is used to make a bomb, etc explode at a particular time (炸弹的)导火索,引信,信管