verb in·fest \in-ˈfest\

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

Full Definition of INFEST

transitive verb
:  to spread or swarm in or over in a troublesome manner <a slum infested with crime> <shark-infested waters>
:  to live in or on as a parasite
in·fes·tant \-ˈfes-tənt\ noun
in·fes·ta·tion \ˌin-ˌfes-ˈtā-shən\ noun
in·fest·er \in-ˈfes-tər\ noun

Examples of INFEST

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

Origin of INFEST

French infester, from Latin infestare, from infestus hostile
First Known Use: 1602
INFESTING Defined for Kids


verb in·fest \in-ˈfest\

Definition of INFEST for Kids

:  to spread or swarm in or over in a harmful manner <Termites infested the tree.>
Medical Dictionary


transitive verb in·fest \in-ˈfest\

Medical Definition of INFEST

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


Next Word in the Dictionary: infestiousPrevious Word in the Dictionary: infertileAll Words Near: infest
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