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
The Epidemic Intelligence Service was founded in 1951, just five years after the launch of the CDC, in response to Cold War-era concerns about biological warfare.
—
Casey Luc, The Conversation, 14 Apr. 2025
That is certainly the case with the chemtrails conspiracy theory, which is based on the premise that aircraft condensation trails, or contrails, contain chemicals for weather modification, controlling citizens’ brains or even biological warfare.
—Ramishah Maruf, Brandon Miller, CNN, 25 Mar. 2025
Gabbard has also defended Russia’s invasion of Ukraine and espoused the same false claims—that there are U.S. biological warfare labs at the Ukrainian border—used by Putin to justify his actions.
—Chloe Berger, Fortune, 27 Nov. 2024
Other fears include world powers deploying nuclear weapons, terrorist attacks, biological warfare and not having enough money for the future.
—Sarah Kuta, Smithsonian Magazine, 25 Oct. 2024
See All Example Sentences for biological warfare
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Casey Luc, The Conversation, 14 Apr. 2025
That is certainly the case with the chemtrails conspiracy theory, which is based on the premise that aircraft condensation trails, or contrails, contain chemicals for weather modification, controlling citizens’ brains or even biological warfare.
—Ramishah Maruf, Brandon Miller, CNN, 25 Mar. 2025
Gabbard has also defended Russia’s invasion of Ukraine and espoused the same false claims—that there are U.S. biological warfare labs at the Ukrainian border—used by Putin to justify his actions.
—Chloe Berger, Fortune, 27 Nov. 2024
Other fears include world powers deploying nuclear weapons, terrorist attacks, biological warfare and not having enough money for the future.
—Sarah Kuta, Smithsonian Magazine, 25 Oct. 2024
See All Example Sentences for biological warfare
Cite this Entry
“Biological warfare.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biological%20warfare. Accessed 7 May. 2025.
Copy CitationMedical 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
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