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Definition of infest
transitive verb
1 : to spread or swarm in or over in a troublesome manner a slum infested with crime shark-infested waters
2 : to live in or on as a parasite
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Examples of infest in a Sentence
in desperation, we called in an exterminator because the house was infested with ants
Recent Examples of infest from the Web
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Teams were deployed after a commercial fisherman’s capture June 22 of a silver carp, one of the species native to Asia that have infested the Illinois River and advanced on Lake Michigan.
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If residents believe South American Palm Weevils have infested palms in their community, they’re urged to call the San Diego County insect hotline at (800) 200-2337 or send an email to sdcawm@sdcounty.ca.gov.
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This will prevent carpenter ants from infesting the wood and causing structural damage.
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The bed might be infested with bedbugs, but the TV remote will be germ-free.
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It is intended to prevent fish from swimming between the Great Lakes and the Mississippi River system, which is infested with Asian carp.
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The animals were infested with lice, suffering from diarrhea and underweight, said Susie Coston, Farm Sanctuary’s national shelter director.
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Foliage or fruit that touch the soil can become infested with disease or even rot because of the humid conditions at ground level.
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Investigators responding to the scene found maggots had infested his bed.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'infest.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of infest
French infester, from Latin infestare, from infestus hostile
INFEST Defined for English Language Learners
infest
playDefinition of infest for English Language Learners
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of something harmful or unwanted : to be in or over (a place, an animal, etc.) in large numbers
INFEST Defined for Kids
infest
playDefinition of infest for Students
infested
;infesting
: to spread or swarm in or over in a harmful manner Termites infested the tree.
Medical Dictionary
Learn More about infest
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Thesaurus: All synonyms and antonyms for infest Spanish Central: Translation of infest Nglish: Translation of infest for Spanish speakers Britannica English: Translation of infest for Arabic speakers
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