- (loosely) a salt or ester of phosphoric acid.
- a tertiary salt of orthophosphoric acid, as sodium phosphate.
- Agriculture. a fertilizing material containing compounds of phosphorus.
- a carbonated drink of water and fruit syrup containing a little phosphoric acid.
Origin of phosphate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for phosphate
Until a year ago, phosphate mining had left gashes up to dozens of meters deep here.Protecting Nature, Ignoring International Law
Emily L. Hauser
March 29, 2013
After the phosphate is reduced to powder, it is mixed with acid.Manures and the principles of manuring
Charles Morton Aikman
What the birds required was phosphate of lime, and the bones gave them that.The Land of the Kangaroo
Thomas Wallace Knox
Maybe it was only the name of a man, or a grass, or a sort of phosphate.Old Junk
H. M. Tomlinson
If the phosphate of lime in the manure, containing 40 per cent.The Stock-Feeder's Manual
Charles Alexander Cameron
On the other hand, there are phosphate compounds that act as poisons.
- any salt or ester of any phosphoric acid, esp a salt of orthophosphoric acid
- (often plural) any of several chemical fertilizers containing phosphorous compounds
C18: from French phosphat; see phosphorus, -ate 1
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 phosphate
Online Etymology Dictionary, © 2010 Douglas Harper
- A salt or ester of phosphoric acid.
- Containing the trivalent radical PO4.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A salt or ester of phosphoric acid, containing the group PO4. Phosphates are important in metabolism and are frequently used in fertilizers.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.