Ammonia (noun)

A colorless gas with a strong, pungent smell. It is used in the manufacture of fertilizers, cleaning fluids, and nitric acid.

Origin:

Late 18th century: from latin sal ammoniacus "salt of ammon" (because the gas was first obtained by heating this salt).

Examples:

1. The smell of ammonia was overpowering in the cleaning aisle of the store.
2. Ammonia is used to make fertilizers for crops.
3. The ammonia was used to create nitric acid.
4. The laboratory had several containers of ammonia.
5. The ammonia was used as a refrigerant in older refrigeration systems.