viperoidea
Vi`per*oi"de*a, Vi`per*oi"des, n. pl. Etym: [NL. See Viper, and - oid.] (Zoöl.) Defn: A division of serpents which includes the true vipers of the Old World and the rattlesnakes and moccasin snakes of America; -- called also Viperina.
Vi`per*oi"de*a, Vi`per*oi"des, n. pl. Etym: [NL. See Viper, and - oid.] (Zoöl.) Defn: A division of serpents which includes the true vipers of the Old World and the rattlesnakes and moccasin snakes of America; -- called also Viperina.