Definition of niter in English:

niter

Syllabification: ni·ter
Pronunciation: /ˈnītər
 
/
(British nitre)

noun

Another term for potassium nitrate.
More example sentences
  • The German U-boats were shooting on the boats, so most of the niter they were trying to import to make nitroglycerin was at the bottom of the ocean.
  • Various reflecting surfaces were used: polished metallic rocks such as obsidian, pyrite, and iron; rock crystal; and an alloy of rose copper and tin, plus an alchemical brew consisting of white arsenic, red tartar, and nitre.
  • Nitre, or niter, is also used to manufacture gunpowder.

Origin

late Middle English: from Old French, from Latin nitrum, from Greek nitron.

Definition of niter in:

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