In generic sense: a snake, a serpent, esp. with reference to the serpent as a manifestation of the devil in the biblical account of the Fall in the…

A viper. Also figurative and in figurative context.

Zoology. One or other of the snakes belonging to the genus Vipera, of which the common viper is the type, or to the family Viperidæ.

n. Zoology. A snake belonging to the Viperina.

A snake of the family Viperidæ, which comprises the true vipers and in most modern classifications the pit vipers, all venomous snakes having hinged…