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biological warfare
noun
: warfare involving the use of biological weapons
also
: warfare involving the use of herbicides
Examples of biological warfare in a Sentence
Recent Examples on the Web
Similarly, a majority of respondents were also afraid of biological warfare, as well as America getting involved in another world war.
—Sarah Kuta, Smithsonian Magazine, 25 Oct. 2024
For many decades, so have humans: The Japanese conducted brutal biological warfare experiments in World War II; both the U.S. and the Soviet Union stockpiled toxins during the Cold War, with the latter’s program continuing even after signing the Biological Weapons Convention in 1972.
—Bloomberg Opinion, Twin Cities, 19 Sep. 2024
Facebook posts from October and November 2023 promoted conspiracy theories about China, COVID-19 and biological warfare.
—David Brennan, ABC News, 16 Sep. 2024
There’s no evidence the colorful pest was used as a form of biological warfare.
—Byerik Stokstad, science.org, 27 June 2024
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Word History
First Known Use
1921, in the meaning defined above
Time Traveler
The first known use of biological warfare was
in 1921
Dictionary Entries Near biological warfare
Cite this Entry
“Biological warfare.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biological%20warfare. Accessed 1 Dec. 2024.
Kids Definition
biological warfare
noun
: warfare involving the use of biological weapons
Medical Definition
biological warfare
noun
biological war·fare
-ˈwȯr-ˌfa(ə)r, -ˌfe(ə)r
: warfare involving the use of biological weapons
also
: warfare involving the use of herbicides
More from Merriam-Webster on biological warfare
Britannica.com: Encyclopedia article about biological warfare
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Merriam-Webster unabridged
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