First Known Use: 1808
Dictionary
ammonium
noun am·mo·ni·um \ə-ˈmō-nē-əm\
Definition of AMMONIUM
: an ion NH4+ derived from ammonia by combination with a hydrogen ion and known in compounds (as salts) that resemble in properties the compounds of the alkali metals
See ammonium defined for kids ADVERTISEMENT
Origin of AMMONIUM
New Latin, from ammonia
Ammonium
geographical name
Definition of AMMONIUM
— see siwa
Medical Dictionary
ammonium
noun am·mo·ni·um \ə-ˈmō-nē-əm\
Medical Definition of AMMONIUM
: an ion NH4+ derived from ammonia by combination with a hydrogen ion and known in organic compounds (as quaternary ammonium compounds) and in compounds (as salts) that resemble in properties the compounds of the alkali metals
Learn More About AMMONIUM
Browse
Next Word in the Dictionary: ammonium bicarbonatePrevious Word in the Dictionary: AmmonitoideaAll Words Near: ammonium
ADVERTISEMENT
Seen & Heard
What made you want to look up ammonium? Please tell us where you read or heard it (including the quote, if possible).