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

yellow jacket

noun    (Concise Encyclopedia)

Any of 35–40 species (genus Dolichovespula or Vespula) of social wasps, principally of the Northern Hemisphere, named for the black bands on its yellow abdomen. They differ from other wasps in having their wings folded longitudinally when at rest. Dolichovespula species typically build exposed nests. Vespula species build concealed nests underground or in protected cavities; when a nest is stepped on, the colony may erupt in an angry, stinging swarm. Nest size varies widely; some nests can be held in one hand, whereas nests in warmer climates may weigh half a ton.

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