Viperine \Vi"per*ine\ (?; 277), a. [L. viperinus: cf. F. vip['e]rin.]

Of or pertaining to a viper or vipers; resembling a viper.

Viperine snake. (Zo["o]l.)
   (a) Any venomous snake of the family Viperid[ae].
   (b) A harmless snake resembling a viper in form or color, esp. Tropidonotus viperinus, a small European species which resembles the viper in color.

Source: Webster's Revised Unabridged Dictionary (1913)