destroyer
/dɪˈstrɔɪə(r)/noun
1- a small fast warship, especially one equipped for a defensive role against submarines and aircraft驱逐舰。
1.1
- someone or something that destroys毁坏者; 起破坏作用的东西：
CFCs are the chief destroyers of the ozone layer.
含氯氟烃是破坏臭氧层的元凶。