biological control

noun

1
: the reduction in numbers or elimination of pest organisms by interference with their ecology (as by the introduction of parasites or diseases)
2
: an agent used in biological control

Examples of biological control in a Sentence

She practices biological control in her gardening. She uses biological controls in her garden.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The report concluded that mirror cells could become a reality in the next 10 to 30 years and detailed the potentially devasting consequences if mirror bacteria were released into an environment and spread, evading natural biological controls and acting as dangerous pathogens. Katie Hunt, CNN Money, 17 Oct. 2025 This first-of-its-kind sighting revealed the worm’s potential as a biological control for the invasive species. Real-Time News Team, Miami Herald, 5 Sep. 2025 Predators, parasites and pathogens (disease-producing organisms) are the primary groups of natural enemies, also called biological control agents. Nanette Londeree, Mercury News, 4 Aug. 2025 Signatures of a weevil infestation are drooping fronds and a collapsed or tilting crown that turns brown in an umbrella-like appearance, according to Mark Hoddle, a biological control specialist and principal investigator at the UC Riverside Department of Entomology. Ashley MacKin Solomon, San Diego Union-Tribune, 23 July 2025 See All Example Sentences for biological control

Word History

First Known Use

1916, in the meaning defined at sense 1

Time Traveler
The first known use of biological control was in 1916

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Cite this Entry

“Biological control.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biological%20control. Accessed 24 Oct. 2025.

Kids Definition

biological control

noun
: attack upon pests by interference with their ecology (as by introduction of parasites)

Medical Definition

biological control

noun
1
: the reduction in numbers or elimination of pest organisms by interference with their ecology (as by the introduction of parasites or diseases)
2
: an agent (such as pyrethrum) used in biological control

More from Merriam-Webster on biological control

Last Updated: - Updated example sentences
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