Definitions
1.NounAn animal toxin intended for defensive or offensive use; a biological poison delivered by bite, sting, etc., to protect an animal or to kill its prey.
2.NounFeeling or speech marked by spite or malice; vitriol.
3.VerbTo infect with venom; to envenom; to poison.
4.AdjectivePoisonous, poisoned; (figuratively) pernicious.