housefly
From Longman Dictionary of Contemporary EnglishRelated topics: Insectshouseflyhouse‧fly /ˈhaʊsflaɪ/ noun (plural houseflies) [countable] HBIa common type of fly that lives in people’s housesExamples from the Corpushousefly• Thousands of individuals, each not quite as big as a housefly make up the swarm.• Even as I listened to him, mosquitoes, fat as houseflies, feasted on my legs.• Cluster flies are bristly gray insects, about five times bigger than the ordinary housefly, Musca domestica.