blowfly
US /ˈbloʊ.flaɪ/
UK /ˈbloʊ.flaɪ/

1.
a large, hairy fly, typically metallic blue or green, that lays its eggs on meat or carrion.
:
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The picnic was ruined by swarms of blowflies.
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A single blowfly buzzed annoyingly around the room.
a large, hairy fly, typically metallic blue or green, that lays its eggs on meat or carrion.