black widow
noun
a venomous spider, Latrodectus mactans, widely distributed in the U.S., the female of which is jet-black with an hourglass-shaped red mark on the underside of its abdomen.
Origin of black widow
First recorded in 1910–15
Words nearby black widow
British Dictionary definitions for black widow
black widow
noun
an American spider, Latrodectus mactans, the female of which is black with red markings, highly venomous, and commonly eats its mate