black widow
US /ˌblæk ˈwɪdoʊ/
UK /ˌblæk ˈwɪdoʊ/
1.
viúva-negra
a venomous spider of the genus Latrodectus, especially L. mactans, found in warm regions, the female of which is black with an hourglass-shaped red mark on the underside of the abdomen.
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The bite of a black widow spider can be dangerous.
A picada de uma aranha viúva-negra pode ser perigosa.
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She identified the spider as a black widow by its distinctive red hourglass mark.
Ela identificou a aranha como uma viúva-negra pela sua distintiva marca de ampulheta vermelha.