Meaning of monoammonium phosphate

mon'o•am•mo'ni•um phos'phate

Pronunciation: (mon'ō-u-mō'nē-um, mon"-), [key]
— Chem. Chem.
  1. a white, crystalline, moderately water-soluble compound, NHHPO, used as fertilizer, in fire extinguishers, etc. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.