adjective

• Of an animal (specifically a snake) or parts of its body: producing venom (“a toxin intended for defensive or offensive use”) which is usually injected into an enemy or prey by biting or stinging; hence, of a bite or sting: injecting venom.
• Of or pertaining to venom.
• (archaic) Consisting of, or containing or full of, venom or some other poison; hence, harmful to health due to this.
• (figurative)
• Posing a threat; dangerous, threatening.
• Hateful; malignant; spiteful.
• (obsolete)
• Of a weapon such as an arrow or dart: dosed with venom or poison; envenomed, poisoned.
• (figurative) Harmful, hurtful, injurious; specifically, morally or spiritually harmful; evil, noxious, pernicious.