ignition

ignition
noun
  1. [mass noun]the action of setting something on fire or starting to burn
    点火,着火
    three minutes after ignition, the flames were still growing.
    点火后三分钟,火焰仍越烧越高。
    ■the process of starting the combustion of fuel in the cylinders of an internal-combustion engine
    (内燃机汽缸燃料的)发火
    ■[count noun](一般作 the ignition)the mechanism for bringing this about, typically activated by a key or switch
    (尤指以钥匙、开关发动的)发火装置
    he put the key in the ignition.
    他把钥匙插入发火装置。
语源
  1. early 17th cent. (denoting the heating of a substance to the point of combustion or chemical change): from medieval Latin ignitio(n-), from the verb ignire 'set on fire' (see ignite)
英语宝典
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