- Chemistry.
- (loosely) a salt or ester of phosphoric acid.
- a tertiary salt of orthophosphoric acid, as sodium phosphate.
- a fertilizing material containing compounds of phosphorus.
- a carbonated drink of water and fruit syrup containing a little phosphoric acid.
- any salt or ester of any phosphoric acid, esp a salt of orthophosphoric acid
- any of several chemical fertilizers containing phosphorous compounds
