Definition

A type of mineral that is a source of potassium nitrate, often used in fertilizers and food preservation.

Example

The farmer used nitre to improve the soil quality for his crops.

Conversation

Have you ever heard of nitre?

Yeah, I think it's another name for niter, right?

Exactly! It's used in making gunpowder and fertilizers.

That's interesting! I didn't know it had such important uses.

Synonyms & Antonyms

Root Explanation

Nitre originates from Old French *nitre*, which comes from Latin *nitrum*, meaning a type of salt or mineral. The word refers specifically to potassium nitrate, a mineral used historically in fertilizers and gunpowder.

Memory Tip

Think of the Old French word for a type of salt — that's why nitre refers to a mineral salt.

Visually Confused Words