saltpeter
Americannoun
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the form of potassium nitrate, KNO 3 , that occurs naturally, used in the manufacture of fireworks, fluxes, gunpowder, etc.; niter.
Etymology
Origin of saltpeter
1275–1325; earlier salt peter; replacing Middle English sal peter, salpetre < Medieval Latin salpetrē, for Latin sal petrae salt of rock, so called because it commonly encrusts stones
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Tultepec was one of the first places that began to produce gunpowder in Mexico during the colonial period, because of the town’s abundant supply of saltpeter, a key ingredient.
From Seattle Times ● Mar. 9, 2024
He was perhaps the world’s leading expert on the history of mining for saltpeter, a primary ingredient in gunpowder, which in the 19th century was often harvested from caves.
From New York Times ● Dec. 16, 2022
The addition of steel or cast-iron shavings to the saltpeter made them sparkle.
From Salon ● Jul. 13, 2021
Many of the records come from the Confederate nitre and mining bureau, which was set up to produce saltpeter, among other things.
From Washington Post ● Jul. 9, 2020
Gunpowder was even harder to get, but all over New England saltpeter, sulphur, and charcoal were being ground to a paste, made into gunpowder.
From "Johnny Tremain" by Esther Hoskins Forbes
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
