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yellow jacket

n 1  :  any of various yellow-marked social wasps (esp. genus Vespula of the family Vespidae) that usu. nest in the ground, aggressively defend their nests, and can sting repeatedly and painfully  2  :  a yellow capsule containing a preparation of pentobarbital - usu. used in pl. .
 
 

 
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Orthopaedic Specialists of Alabama (Birmingham, Alabama - Jefferson County)