black widow

noun

Definition of black widow

: a venomous New World spider (Latrodectus mactans of the family Theridiidae) the female of which is black with an hourglass-shaped red mark on the underside of the abdomen broadly : any of various related venomous spiders that have a large globular, usually glossy, dark abdomen often marked with red and long and wiry legs

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black whale

black wheatear

black-whiskered vireo

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The first known use of black widow was in 1830

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More Definitions for black widow

black widow

noun

English Language Learners Definition of black widow

: a poisonous American spider

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black widow

noun

Kids Definition of black widow

: a poisonous spider the female of which is black with a red mark shaped like an hourglass on the underside of the abdomen

black widow

noun

black wid·ow | \ -ˈwid-ˌō

Medical Definition of black widow

: a venomous New World spider of the genus Latrodectus (L. mactans) the female of which is black with an hourglass-shaped red mark on the underside of the abdomen broadly : any other spider of the genus Latrodectus