weapon of mass destruction
noun🔊/ˌwepən əv ˌmæs dɪˈstrʌkʃn/
🔊/ˌwepən əv ˌmæs dɪˈstrʌkʃn/
(abbreviation WMD)
a weapon such as a nuclear weapon, a chemical weapon or a biological weapon that can destroy large areas and kill many people 大规模杀伤性武器（如核武器、化学武器和生物武器） states developing weapons of mass destruction 研制大规模杀伤性武器的国家