pest

noun

1
: an epidemic disease associated with high mortality
specifically : plague
2
: something resembling a pest in destructiveness
especially : a plant or animal detrimental to humans or human concerns (such as agriculture or livestock production)
3
: one that pesters or annoys : nuisance
pesty adjective

Examples of pest in a Sentence

These insects are pests for farmers. mice and other household pests You're being a real pest. Would you leave us alone, please?
Recent Examples on the Web Higher concentrated mixtures can be diluted for future use or used full strength for pest control. Kristin Guy, Sunset Magazine, 11 Apr. 2024 While precise estimates are difficult, a pest control company said there were as many as three million rats in the city. Emma G. Fitzsimmons, New York Times, 10 Apr. 2024 Last fall, Orkin pest control ranked it the fourth-rattiest city in America – after the much larger metropolises of Chicago, Los Angeles, and New York. Sophie Hills, The Christian Science Monitor, 4 Apr. 2024 And the heavy-duty zippers ensure belongings stay secure inside the bag (and that pests stay out). Nicol Natale, Peoplemag, 31 Mar. 2024 Primack was less worried about the absence of spring bees than the presence of pest insects and fungal diseases, which become more common as temperatures rise. Harry Stevens, Washington Post, 22 Mar. 2024 More:Proposal would allow corrosive materials to cross Ambassador Bridge: Public can weigh in More:Core City residents urge Detroit to rezone controversial concrete site Experts compiled the report based on weather patterns, long-term forecasts, and pest biology. Jenna Prestininzi, Detroit Free Press, 20 Mar. 2024 Attach photos for inquiries about plant pests or diseases. Sara Okeefe, The Mercury News, 16 Mar. 2024 The research could better inform our scientific understanding of one of history’s greatest pests. Lauren Leffer, Popular Science, 3 Apr. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'pest.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Middle French peste, from Latin pestis

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of pest was in the 15th century

Dictionary Entries Near pest

Cite this Entry

“Pest.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pest. Accessed 20 Apr. 2024.

Kids Definition

pest

noun
1
: an epidemic disease which causes a large number of deaths
especially : plague entry 1 sense 2
2
: something resembling a pest in destructiveness
especially : a plant or animal harmful to human beings or human concerns (as agriculture)
3
: one that pesters or annoys : nuisance
pesty adjective

Medical Definition

pest

noun
1
: an epidemic disease associated with high mortality
specifically : plague sense 2
2
: something resembling a pest in destructiveness
especially : a plant or animal detrimental to humans or human concerns
pesty adjective

More from Merriam-Webster on pest

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