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robber fly

noun
1.
any of numerous swift-flying, often large, dipterous insects of the family Asilidae that are predaceous on other insects.
Origin
1870-1875
1870-75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for robber fly

robber fly

noun
1.
any of the predatory dipterous flies constituting the family Asilidae, which have a strong bristly body with piercing mouthparts and which prey on other insects Also called bee killer, assassin fly
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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Word Value for robber

10
12
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