yellow jacket
noun
any of several paper wasps of the family Vespidae, having black and bright yellow bands.
Slang.
a yellow capsule of phenobarbital.
Origin of yellow jacket
An Americanism dating back to 1790–1800
Words nearby yellow jacket
Example sentences from the Web for yellow jacket
British Dictionary definitions for yellow jacket
yellow jacket
noun
US and Canadian
any of several social wasps of the genus Vespa, having yellow markings on the body