viper

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viper

 [vi´per]
1. any snake of the viperid and crotalid families (the true vipers and the pit vipers).
2. a term sometimes used to refer to any venomous snake.
Old World viper true viper.
pit viper any of a family of venomous snakes found in North America including the many types of rattlesnakes (genera Crotalus and Sistrurus), as well as the copperheads and water moccasins (both of genus Agkistrodon).
Russell's viper Vipera russellii, a true viper of Southeast Asia whose venom (Russell's viper venom) is used in blood tests.
true viper any of a large family of venomous snakes found in Africa, parts of Europe, Asia, and adjacent islands, but not in the Americas or Australia; it includes cobras and adders, among others. Called also Old World viper, viperid, and viperine.

vi·per

(vī'pĕr),
A member of the snake family Viperidae.
[L. vipera, serpent, snake]

viper

/vi·per/ (vi´per) any venomous snake, especially any member of the families Viperidae (true vipers) and Crotalidae (pit vipers).
European viper  Vipera berus, a venomous snake native to Europe, North Africa, and the Middle East.
Gaboon viper  Bitis gabonica, a deadly, brightly marked, viperine snake found in tropical West Africa.
pit viper  crotalid (1).
rhinoceros viper  Bitis nasicornis, a venomous, brightly colored, viperine snake found in tropical Africa, having a pair of hornlike growths on its snout.
Russell's viper  Vipera russelli, an extremely venomous, brightly colored, viperine snake of southeastern Asia and Indonesia.
sand viper  Vipera ammodytes, a venomous snake found in southern Europe and Turkey that has a hornlike protuberance on its snout for burrowing.
true viper  any of the snakes of the family Viperidae.

viper

(vī′pər)
n.
1. Any of various venomous snakes of the family Viperidae, having a thick heavy body and a single pair of long hollow fangs, especially the Eurasian and African species of the subfamily Viperinae, which lack the sensory pits of the pit vipers.
2. Any of several harmless snakes sometimes believed to be venomous.

viper

any venomous snake, especially any member of the families Viperidae (true vipers) and Crotalidae (pit vipers).
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