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Medical Dictionary

yellow jacket

noun

Medical Definition of yellow jacket

  1. 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. 2 slang :  pentobarbital especially in a yellow capsule—usually used in plural



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immature or lacking adult sophistication

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