black widow
noun
1- a highly venomous American spider which has a black body with red markings美洲黑寡妇毒蜘蛛。
1.1
- Latrodectus mactans, family Theridiidae; subspecies also occur on other continents.拉丁名Latrodectus mactans,姬蜘科：其亚种在其他洲也有发现（见KATIPO, REDBACK及BUTTON SPIDER）。