/ Dictionary / Index S saltpeter: Meaning and Definition of Find definitions for: salt•pe•ter Pronunciation: (sôlt"pē'tur), [key] — n. the form of potassium nitrate, KNO, that occurs naturally, used in the manufacture of fireworks, fluxes, gunpowder, etc.; niter. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: saltpeter (Thesaurus) salt pan salt pit Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language