| weapons of mass destruction | |
| —pl n | |
| WMD nuclear, chemical, or biological weapons that can cause indiscriminate death or injury on a large scale | |
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).
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| the offspring of a zebra and a donkey. |