weapons of mass destruction

World English Dictionary
weapons of mass destruction
pl n
WMD nuclear, chemical, or biological weapons that can cause indiscriminate death or injury on a large scale

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American Heritage
Cultural Dictionary

weapons of mass destruction definition

Weapons that can produce devastating results when delivered in a single strike. They include nuclear, chemical, and biological weapons.

Note: One of the great challenges of the twenty-first century will be to constrain the proliferation and use of such weapons, especially by terrorists (see terrorism).
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
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