| ammonium | the ion NH4 derived from ammonia |
|---|---|
| ammonium | a white crystalline double sulfate of aluminum: the ammonium double sulfate of aluminum |
| ammonium | a salt of carbamic acid that is used as a nitrogen fertilizer |
| ammonium | a carbonate of ammonium |
| ammonium | a white salt used in dry cells |
| ammonium | a water solution of ammonia |
| ammonium | the ion NH4 derived from ammonia |
| ammonium | used as an explosive and fertilizer and rocket propellant |