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# ammonia

noun (ammonia — uncountable)

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

## Everyday

1. A colourless gas with a very strong, sharp smell, made of nitrogen and hydrogen. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/ammonia/#m1)
2. A liquid solution of this gas in water, used in some cleaning products. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/ammonia/#m2)

### In the lessons

In science lessons ammonia is an example of a compound with a famous smell; it is made in nature when things rot and is in animal wee. Farmers use fertilisers made from ammonia to help crops grow. In safety lessons: never mix ammonia cleaners with bleach, because it makes poisonous gas. Phrases: smell of ammonia, ammonia cleaner.

### Examples

- Ammonia has a very strong smell. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/ammonia/#x1)
- The hamster cage smelled of ammonia. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/ammonia/#x2)
- Never mix bleach with ammonia; it makes a dangerous gas. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/ammonia/#x3)
- Ammonia is used to make fertilisers for farms. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/ammonia/#x4)
- Some glass cleaners contain ammonia. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/ammonia/#x5)
- Ammonia is made of nitrogen and hydrogen. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/A/ammonia/#x6)

### Note

Uncountable. Chemical formula NH3 (one nitrogen atom, three hydrogen atoms). Safety: open windows when cleaning; never mix cleaning products. Not the same as "ammonium" (part of some salts).

## On Mova

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