- (loosely) a salt or ester of phosphoric acid.
- a tertiary salt of orthophosphoric acid, as sodium phosphate.
Examples from the Web for phosphate
I worked here in the phosphate mine until last year, when they started to paying pensions.Slave Narratives: A Folk History of Slavery in the United States|Work Projects Administration
This, however, is not all; for the decomposition of sugar a phosphate is also indispensable.Alcoholic Fermentation|Arthur Harden
Phosphate powders are less open to objection, as they are more easy to obtain free from lead and other metallic impurities.
The reason why super-phosphate of lime is so much better than phosphate, may be easily explained.The Elements of Agriculture|George E. Waring
Maybe it was only the name of a man, or a grass, or a sort of phosphate.Old Junk|H. M. Tomlinson