In·fest, v. t. [imp. & p. p. Infested; p. pr. & vb. n. Infesting.]  To trouble greatly by numbers or by frequency of presence; to disturb; to annoy; to frequent and molest or harass; as, fleas infest dogs and cats; a sea infested with pirates.
    To poison vermin that infest his plants.   --Cowper.
    These, said the genius, are envy, avarice, superstition, love, with the like cares and passions that infest human life.   --Addison.
 And the cares, that infest the day,
 Shall fold their tents, like the Arabs,
 And as silently steal away.   --Longfellow.
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