1. plural of housefly; common flies that live in and around human dwellings and feed on decaying organic matter

Examples

• The kitchen was buzzing with houseflies attracted to the garbage.
• She swatted at the houseflies circling the fruit bowl.
• Houseflies can spread disease by landing on food after visiting contaminated surfaces.
• The screen door helps keep houseflies out of the house.
• During summer, houseflies become more numerous and bothersome.
• The restaurant was cited for having too many houseflies in the dining area.