Definition of pest
pestyplay \ˈpe-stē\ 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 of pest from the Web
Researchers realised, soon after the discovery of gene drives half a century ago, that they might be forged into tools for eradicating diseases and pests.
The Kansas City Health Department cited d’Bronx Authentic Deli and Pizzeria, 3904 Bell St., for not having effective pest control measures in place.
Keeping the grill grates clean prevents the buildup of bacteria, discourages bugs and pests from trying to check out your grill, and prevents carbon buildup which can eventually alter the performance of your grill.
Around the same time the baby pumpkins are appearing on the vine, the pests show up.
The EPA approved a new Monsanto biotechnology last week: Corn seeds will be genetically modified to produce an insecticide that in turn kills pests (in this case, western corn rootworms) by disrupting their RNA.
So, yeah, paying attention and [being] interested to see what happens but also trying to leave them alone to do their jobs and not be a pest.
Its pest control company arrived during the inspection.
While other bacteria, such as delftia, tend to keep the pests away.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pest.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of pest
Middle French peste, from Latin pestis
First Known Use: 15th centurySee Words from the same year
PEST Defined for English Language Learners
Definition of pest for English Language Learners
: an animal or insect that causes problems for people especially by damaging crops
: a person who bothers or annoys other people
PEST Defined for Kids
Seen and Heard
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