adder

1. A puff adder, of Africa (genus Bitis).
2. A milk snake (Lampropeltis triangulum). (US)
3. A hog-nosed snake, of genus Heterodon of harmless colubrid snakes found in North America (US)
4. Death adders (Acanthophis spp.), elapid snakes found in Southeast Asia and Australia
5. A northern copperhead (Agkistrodon contortrix mokasen), a venomous viper found in the eastern United States
6. A sea stickleback or adder fish (Spinachia spinachia).

الجمع adders