1. Plural of niter; potassium nitrate, a white crystalline compound used in fertilizers, explosives, and food preservation.
Usage: Also spelled 'nitres' in British English.; Common in chemistry and industrial contexts.

Examples

• The fertilizer contained high levels of niters to promote plant growth.
• Historically, niters were essential ingredients in gunpowder production.
• The chemist measured out precise amounts of niters for the experiment.
• Niters are commonly used in the curing and preservation of meats.
• The mining operation extracted niters from natural deposits in the region.