Confusing words explained
“venomous” vs “poisonous” — What’s the Difference?
Venomous means injecting toxin by bite/sting; poisonous means harmful if touched or eaten.
Key takeaway
Quick Difference: venomous vs poisonous
Venomous means injecting toxin by bite/sting; poisonous means harmful if touched or eaten.
venomous vs poisonous Side-by-Side Comparison
Meaning of venomous
Capable of producing and injecting venom; describes animals that can harm by biting or stinging.
An animal that can hurt you by injecting a harmful liquid when it bites or stings.
Use venomous for animals that inject toxins. Use poisonous for substances harmful when touched or eaten.
- Is this spider venomous?
- The venomous snake bit the farmer on his ankle.
Meaning of poisonous
Containing or filled with poison; capable of causing death or harm
Something that has poison in it and can hurt or kill you if you touch or eat it
Use to describe things containing poison like plants or chemicals. For animals that inject venom, use venomous.
- Do not touch that poisonous plant.
- Poisonous mushrooms grow in the forest.
Usage Notes & Nuance
venomous: Also used figuratively: a venomous remark means a bitter, malicious comment.
poisonous: Commonly used for plants and chemicals. Distinguish from venomous (injected by animals).
How to Remember the Difference
If it bites you and you die, it's venomous. If you bite it and you die, it's poisonous.
Common Mistakes with venomous and poisonous
Mistake with venomous
Correct: The poison ivy is poisonous.
Mistake with venomous
Correct: The poisonous food made him sick.
Mistake with poisonous
Correct: Use venomous for animals that inject venom
Mistake with poisonous
Correct: Stress the first syllable: POI-sonous
Practice Quiz: venomous or poisonous?
Choose the word that best completes each real example sentence.
Question 1
Is this spider _____?
Question 2
The _____ snake bit the farmer on his ankle.
Question 3
Some _____ species have evolved bright warning colors.
Pick at least one answer, then press Check answers to see how you did.
You scored 0 out of 3
Frequently Asked Questions About venomous vs poisonous
What’s the difference between “venomous” and “poisonous”?
Venomous means injecting toxin by bite/sting; poisonous means harmful if touched or eaten.
When should I use “venomous”?
Use venomous for animals that inject toxins. Use poisonous for substances harmful when touched or eaten.
When should I use “poisonous”?
Use to describe things containing poison like plants or chemicals. For animals that inject venom, use venomous.
How can I remember venomous vs poisonous?
If it bites you and you die, it's venomous. If you bite it and you die, it's poisonous.
Is it “venomous” or “poisonous” in example sentences?
Use the quiz above to test the pair with real example sentences from the available word data.