any of several stout, woolly flies of the family Oestridae, the larvae of which produce warbles in cattle and other animals.
Origin of warble fly
First recorded in 1875–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for warble fly
any of various hairy beelike dipterous flies of the genus Hypoderma and related genera, the larvae of which produce warbles in cattle: family Oestridae
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