VIPERINE
Etymology
Adjective
viperine (comparative more viperine, superlative most viperine)
Of, relating to or resembling a viper
Noun
viperine (plural viperines)
Any viper of the subfamily Viperinae
Source: Wiktionary
Vi"per*ine, a. Etym: [L. viperinus: cf. F. vipérin.]
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition