(transitive) To inhabit a place in unpleasantly large numbers; to plague, harass. / (pathology, of a parasite) To invade a host plant or animal.

(obsolete) Mischievous; hurtful; harassing.

(obsolete) Hostility.

The presence of a large number of pest organisms in an area or field, on the surface of a host or anything that might contact a host, or in the soil.

simple past tense and past participle of infest

plural of infestation

present participle of infest

Third-person singular simple present indicative form of infest

plural of infester

That which infests something