ammonium
[uh-moh-nee-uh m]
- the univalent ion, NH4+, or group, NH4, which plays the part of a metal in the salt formed when ammonia reacts with an acid.
Show More
Origin of ammonium
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for ammonium
Contemporary Examples
Ammonium nitrate is extremely common, and pretty dangerous, and also extremely useful.
Historical Examples
The solution may be regarded as containing the ammonium cellulose xanthate.
Researches on CelluloseC. F. Cross
On account of the formation of an ammonium salt in the reaction.
Do not mistake the fumes of the acid for those of ammonium chlorid.
Detection of the Common Food AdulterantsEdwin M. Bruce
Add an excess of ammonia, then a drop or two of ammonium sulfid.
Detection of the Common Food AdulterantsEdwin M. Bruce
An aqueous solution in the cold is not precipitated by oxalate of ammonium.
Cooley's Practical Receipts, Volume IIArnold Cooley
ammonium
- (modifier) of, consisting of, or containing the monovalent group NH 4 – or the ion NH 4 +ammonium compounds
Show More
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
ammonium
(ə-mō′nē-əm)- The univalent radical NH4+, that is derived from ammonia and that reacts as a univalent metal in forming ammonium compounds.
Show More
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
ammonium
[ə-mō′nē-əm]
- A positively charged ion, NH4, derived from ammonia and found in a wide variety of organic and inorganic compounds. Compounds of ammonium chemically resemble the alkali metals.
Show More
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.