saltpeter
Translation
saltpetre
Examples
Saltpeter is an ingredient in gunpowder.
Saltpetre is an ingredient in gunpowder.
They used saltpeter to preserve meat.
They used saltpetre to preserve meat.
Grammar Patterns
((sth.)) saltpetre Saltpetre is an ingredient in gunpowder.
Similar Words
Synonyms: potassium nitrate, niter
Etymology
From Medieval Latin 'sal petrae', meaning 'salt of the rock', because it looks like salt crystals on walls.
Memory Tips
Break it down into 'salt' and 'peter' (think of St. Peter, the rock). It's the 'salt of the rock'.