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 hate...in his eyes"- Ernest Hemingway; "venomous criticism"; "vicious gossip"
A poisonous living thing can harm if it is eaten because it produces toxic substances. Not all poisonous organisms are venomous. For example, you are unlikely to die if a pufferfish bites you, but you may if you eat it.
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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).
having the qualities or effects of a poison