[Elamur Dictionary](https://md.dictionary.elamur.ai/free/en/) · [this page in HTML](https://dictionary.elamur.ai/free/en/english/poisonous/)

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# poisonous

adjective (poisonous, more poisonous, most poisonous)

«poisonous» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. Containing poison; able to make you very ill or kill you if eaten, drunk, breathed in or touched. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/poisonous/#m1)
2. Of a person or remarks: very unkind and harmful (figurative). [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/poisonous/#m2)

### In the lessons

In safety lessons: poisonous plants, berries and mushrooms — never eat anything from the wild unless an adult who knows says it's safe; household products like bleach and cleaners are poisonous; medicines can be poisonous if you take too much; carbon monoxide gas is poisonous. In science: animals like poison dart frogs are poisonous to eat or touch; animals that bite or sting with poison are venomous. Phrases: poisonous plants, poisonous berries, poisonous mushrooms, poisonous gas, highly poisonous.

### Examples

- Some mushrooms are poisonous. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/poisonous/#x1)
- Don't eat berries from the bushes — they might be poisonous. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/poisonous/#x2)
- Bleach is poisonous, so keep it locked away. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/poisonous/#x3)
- Poison dart frogs are poisonous to touch. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/poisonous/#x4)
- Carbon monoxide is a poisonous gas you can't smell. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/poisonous/#x5)
- Foxgloves are poisonous plants. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/poisonous/#x6)
- Is this spider poisonous or venomous? [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/poisonous/#x7)
- Chocolate is poisonous to dogs. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/poisonous/#x8)
- Poisonous flies and gnats flew into the coach by thousands. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/poisonous/#x9)

### Note

Spelling: «poison + ous». Poisonous (harms you when you eat or touch it) vs venomous (injects poison by a bite or sting): a snake is venomous; a toadstool is poisonous. Some foods safe for people are poisonous to pets (chocolate, grapes for dogs).

## On Mova

- [Trees and pragmatics of «poisonous» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/P/poisonous/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«poisonous» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/poisonous.html) on Mova free.