Cockatrice. Isaiah 11:8; Isaiah 14:29; Isaiah 59:5, A. V. The R. V. reads in all cases "basilisk" or "adder," margin. The word, in the Scriptures, evidently denotes a very venomous reptile. The original signifies a creature that "hisses," doubtless some species of serpent. Tristram proposes the great yellow viper, the largest of Its kind found in Palestine, and one of the most dangerous.