Definition from Wiktionary, the free dictionary
- Rhymes: -ɛst
- To inhabit a place in unpleasantly large numbers
- Insects are infesting my basement!
- (pathology, of a parasite) To invade a host plant or animal
- (obsolete) mischievous; hurtful; harassing
- (Can we find and add a quotation of Spenser to this entry?)