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black fly

any of the minute, black gnats of the dipterous family Simuliidae, having aquatic larvae.
Also called buffalo gnat.
Origin of black fly
1600-10 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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British Dictionary definitions for blackfly


noun (pl) -flies
a black aphid, Aphis fabae, that infests beans, sugar beet, and other plants Also called bean aphid

black fly

any small blackish stout-bodied dipterous fly of the family Simuliidae, which sucks the blood of man, mammals, and birds See also buffalo gnat
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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blackfly in Medicine

black fly n.
Any of various small dark humpbacked flies of whom the females are aggressive biters and serve as vectors in the transmission of onchocerciasis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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