Simple Definition of yellow jacket
: 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
YELLOW JACKET Defined for Kids
Definition of yellow jacket for Students
: a small wasp with yellow markings that usually nests in colonies in the ground and can sting repeatedly and painfully
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
Learn More about yellow jacket
Medical Dictionary: Definition of "yellow jacket" Spanish Central: Translation of "yellow jacket" Nglish: Translation of "yellow jacket" for Spanish speakers Britannica.com: Encyclopedia article about "yellow jacket"
Seen and Heard
What made you want to look up yellow jacket? Please tell us where you read or heard it (including the quote, if possible).