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A common, widely distributed fly (Musca domestica) that frequents human dwellings, breeds in moist or decaying organic matter, and transmits a wide variety of diseases.
n, pl -flies
(Animals) a common dipterous fly, Musca domestica, that frequents human habitations, spreads disease, and lays its eggs in carrion, decaying vegetables, etc: family Muscidae
or house′ fly`,
n., pl. -flies.
a medium-sized, gray-striped fly, Musca domestica, common around human habitations in nearly all parts of the world.