1. venomous New World spider; the female is black with an hourglass-shaped red mark on the underside of the abdomen; [syn: black widow, Latrodectus mactans]
WordNet (r) 3.0 (2006):
Latrodectus mactans
n 1: venomous New World spider; the female is black with an
hourglass-shaped red mark on the underside of the abdomen
[syn: black widow, Latrodectus mactans]