saltpetre (usually uncountable, plural saltpetres)
(originally) Potassium nitrate.
(uncommon) Sodium nitrate.
• (potassium nitrate): Chilean saltpeter/Chilean saltpetre, nitrate of potash, niter/nitre, potassium nitrate
• (sodium nitrate): caliche, Chile saltpeter/Chile saltpetre, soda niter/soda nitre, sodium nitrate
• saltpeter
Source: Wiktionary
Salt`pe"ter, Salt`pe"tre, (, n. Etym: [F. salpêtre, NL. sal petrae, literally, rock salt, or stone salt; Salt, and Petrify.] (Chem.)
Definition: Potassium nitrate; niter, a white crystalline substance, KNO3, having a cooling saline taste, obtained by leaching from certain soils in which it is produced by the process of nitrification (see Nitrification, 2). It is a strong oxidizer, is the chief constituent of gunpowder, and is also used as an antiseptic in curing meat, and in medicine as a diuretic, diaphoretic, and refrigerant. Chili salpeter (Chem.), sodium nitrate (distinguished from potassium nitrate, or true salpeter), a white crystalline substance, NaNO3, having a cooling, saline, slightly bitter taste. It is obtained by leaching the soil of the rainless districts of Chili and Peru. It is deliquescent and cannot be used in gunpowder, but is employed in the production of nitric acid. Called also cubic niter.
– Saltpeter acid (Chem.), nitric acid; -- sometimes so called because made from saltpeter.
Source: Webster’s Unabridged Dictionary 1913 Edition
19 October 2024
(noun) any of a group of herpes viruses that enlarge epithelial cells and can cause birth defects; can affect humans with impaired immunological systems
Espresso is both a coffee beverage and a brewing method that originated in Italy. When making an espresso, a small amount of nearly boiling water under pressure forces through finely-ground coffee beans. It has more caffeine per unit volume than most coffee beverages. Its smaller serving size will take three shots to equal a mug of standard brewed coffee.
