Webster 1913 Edition
Full of venom; noxious to animal life; poisonous;
as, the bite of a serpent may be.
Having a poison gland or glands for the secretion of venom, as certain serpents and insects.
Noxious; mischievous; malignant; spiteful;
any serpent which has poison glands and fangs, whether dangerous to man or not. These serpents constitute two tribes, the viperine serpents, or Solenoglypha, and the cobralike serpents, or Proteroglypha. The former have perforated, erectile fangs situated in the front part of the upper jaw, and are without ordinary teeth behind the fangs; the latter have permanently erect and grooved fangs, with ordinary maxillary teeth behind them.
Webster 1828 Edition
1.Poisonous; noxious to animal life; as, the bite of a serpent may be venomous. The sack at the base of the rattlesnake's teeth, contains venomous matter.
2.Noxious; mischievous; malignant; as a venomous progeny.
3.Spiteful; as a venomous writer.