Definition of weapon of mass destruction in English:

weapon of mass destruction

Syllabification: weap·on of mass de·struc·tion

noun

  • A chemical, biological or radioactive weapon capable of causing widespread death and destruction.
    More example sentences
    • Like a nuclear bomb, a chemical or biological weapon is a weapon of mass destruction.
    • An atomic bomb is a weapon of mass destruction which uses nuclear fission to produce vast amounts of energy.
    • Terrorist use of a weapon of mass destruction is a frightening prospect.

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a slit made by cutting with a saw