venom is poisonous, that much is understood but I think it is more appropriate to use the word "venomous" when associated with snakes because of the way it is administered. the dictionary does not say that poison is administered with biting or stinging. Therefore, poison cannot be venom. If it were than the bleach under my sink would be considered venomous. Poison is just a general term for something that can harm you. I'm not 100% on this, but I don't think the cane toad has ever been considered 'venomous'. It is 'poisonous' because of the way its toxins are administered.