Definitions for "Poisonous"
Having the qualities or effects of poison; venomous; baneful; corrupting; noxious.
not safe to eat
marked by deep ill will; deliberately harmful; "a malevolent lie"; "poisonous his eyes"- Ernest Hemingway; "venomous criticism"; "vicious gossip"
Keywords:  injure, frogs, dart, rapid, impairing
May destroy life or injure health by rapid action even when taken in small quantity.
an animal which has a substance capable of killing, injuring, or impairing other animals through its chemical action (for example, the skin of poison dart frogs).
Keywords:  qualities, effects
having the qualities or effects of a poison