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# ammonia

«ammonia» in Mova's school dictionary: **A colourless gas with a very strong, sharp smell, made of…** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

noun (ammonia — uncountable)

### meaning for a pupil

1) A colourless gas with a very strong, sharp smell, made of nitrogen and hydrogen. [tree →](https://md.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://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/ammonia/#m2)

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

### Trees and pragmatics

[Every meaning and example of «ammonia» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/A/ammonia/), each sentence with its dependency tree and frames.