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Any one of numerous species of Old World venomous makes belonging to Vipera, Clotho, Daboia, and other genera of the family Viperidæ. There came a viper out of the heat, and fastened on his hand. Acts xxviii. 3.

See Viperoidea.

Of or pertaining to a viper or vipers; resembling a viper. Viperine snake. (Zoöl.) (a) Any venomous snake of the family Viperidæ. (b) A harmless snake resembling a viper in form or color, esp. Tropidonotus viperinus, a small European species which resembles the viper in color.

Somewhat like a viper; viperous.

Like or pertaining to the vipers.

A division of serpents which includes the true vipers of the Old World and the rattlesnakes and moccasin snakes of America; -- called also Viperina.

Having the qualities of a viper; malignant; venomous; as, a viperous tongue. "This viperous slander." Shak. -- Vi"per*ous*ly, adv.

See Water moccasin.

A small venomous serpent of the genus Vipera. The common European adder is the Vipera (or Pelias) berus. The puff adders of Africa are species of Clotho.

A kind of viper in southern Europe. [Obs.]

fatal. It is the Naja haje. The name is also applied to other poisonous serpents, esp. to Vipera aspis of southern Europe. See Haje.

net; oxtongue. Small wild bugloss, the Asperugo procumbens and the Lycopsis arvensis. -- Viper's bugloss, a species of Echium.

our vine cast her fruit. Mal. iii. 11 The creatures that cast the skin are the snake, the viper, etc. Bacon.

A genus of poisonous African serpents, with a horny scale over each eye; the horned viper.

sely allied to the rattlesnake, but without rattles; -- called also copper-belly, and red viper.

A large and highly venomous Asiatic viper (Daboia xanthica).

xpulsion; to reduce greatly the populousness of; to dispeople; to unpeople. Where is this viper, That would depopulate the city Shak.

The stingfish, or lesser weever (Tranchinus vipera).

nus Heterodon, esp. H. platyrhynos; -- called also puffing adder, blowing adder, and sand viper.

, sandy plains from California to Mexico and Texas. Called also horned lizard. -- Horned viper. (Zoöl.) See Cerastes.