Dictionary

yellow jacket

yellow jacket

noun

: a small flying insect that has yellow marks on its body and that can sting you

Full Definition of YELLOW JACKET

1
:  any of various small yellow-marked vespid wasps (especially genus Vespula) that commonly nest in the ground and can sting repeatedly and painfully
2
slang :  pentobarbital especially in a yellow capsule

First Known Use of YELLOW JACKET

1796

yellow jacket

noun    (Medical Dictionary)

Medical Definition of YELLOW JACKET

1
:  any of various yellow-marked social wasps (especially genus Vespula of the family Vespidae) that usually nest in the ground, aggressively defend their nests, and can sting repeatedly and painfully
2
slang :  pentobarbital especially in a yellow capsule—usually used in plural

Illustration of YELLOW JACKET

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