1 [C] the electrical system that starts the engine of a car （启动汽车引擎的）点火装置: to turn the ignition on/off 开╱关点火装置First of all, put the key in the ignition. 首先把钥匙插进点火装置。 ☞picture at car 见car插图

2 [U] the action of starting to burn or making sth start to burn 着火；点火