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yellow jacket

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noun
any of several paper wasps of the family Vespidae, having black and bright yellow bands.
Slang. a yellow capsule of phenobarbital.
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Origin of yellow jacket

An Americanism dating back to 1790–1800
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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British Dictionary definitions for yellow jacket

yellow jacket

noun
US and Canadian any of several social wasps of the genus Vespa, having yellow markings on the body
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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