Also especially British, ni·tre.

Origin of niter

1375–1425; late Middle English nitre < Latin nitrum < Greek nítron natron Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for niter

Historical Examples of niter

British Dictionary definitions for niter



the usual US spelling of nitre
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for niter

see nitre.

Online Etymology Dictionary, © 2010 Douglas Harper

niter in Science



A naturally occurring mineral form of potassium nitrate. It is used to make gunpowder.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.