infest

play
verb in·fest \in-ˈfest\

Definition of infest

  1. transitive verb
  2. 1 :  to spread or swarm in or over in a troublesome manner a slum infested with crime shark-infested waters

  3. 2 :  to live in or on as a parasite

infestant

play \in-ˈfe-stənt\ noun

infestation

play \ˌin-ˌfe-ˈstā-shən\ noun

infester

play \in-ˈfe-stər\ noun

Examples of infest in a sentence

  1. in desperation, we called in an exterminator because the house was infested with ants

Origin and Etymology of infest

French infester, from Latin infestare, from infestus hostile


First Known Use: 1602


INFEST Defined for English Language Learners

infest

play
verb in·fest \in-ˈfest\

Definition of infest for English Language Learners

  • of something harmful or unwanted : to be in or over (a place, an animal, etc.) in large numbers


INFEST Defined for Kids

infest

play
verb in·fest \in-ˈfest\

Definition of infest for Students

infested

;

infesting

  1. :  to spread or swarm in or over in a harmful manner Termites infested the tree.


Medical Dictionary

infest

play
transitive verb in·fest \in-ˈfest\

Medical Definition of infest

  1. :  to live in or on as a parasite the flea that infests cats horses infested with worms—compare infect



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a person who is a bore or nuisance

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