bio·​weap·​on | \ ˈbī-ō-ˌwe-pən How to pronounce bioweapon (audio) \

Definition of bioweapon

Examples of bioweapon in a Sentence

Recent Examples on the Web Jennifer hears that an Arizona statehouse has been overrun by a hostage-taking militia believing that the U.S. government caused this calamity by releasing a bioweapon. Nick Schager,, 13 Sep. 2021 The vaccines have been proven safe and effective and, no, Covid-19 was not a bioweapon. Jemima Mcevoy, Forbes, 30 Aug. 2021 Analysts do not believe the virus was developed as a bioweapon, and most agencies believe the virus was not genetically engineered. Arkansas Online, 28 Aug. 2021 Analysts do not believe the virus was developed as a bioweapon. Nomaan Merchant,, 27 Aug. 2021 Analysts do not believe the virus was developed as a bioweapon., 27 Aug. 2021 Indeed, China’s surge into recombinant DNA research, as outlined in Xi’s 14th Five-Year Development Plan, could signal Beijing’s interest in scouting out an even more virulent agent as a potential bioweapon. Arthur Herman, National Review, 18 July 2021 The first three games revolve around the Metroid species, a life-sapping parasitical lifeform that acts as a bioweapon of sorts. Washington Post, 22 June 2021 Whether the researchers were trying to create a superspreading bioweapon or merely doing research into its features is a subcategory of this theory. Michael Hiltzik, Star Tribune, 10 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bioweapon.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of bioweapon

1962, in the meaning defined above

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The first known use of bioweapon was in 1962

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Last Updated

29 Sep 2021

Cite this Entry

“Bioweapon.” Dictionary, Merriam-Webster, Accessed 24 Oct. 2021.

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More Definitions for bioweapon


bio·​weap·​on | \ ˈbī-ō-ˌwep-ən How to pronounce bioweapon (audio) \

Medical Definition of bioweapon


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