am·​mo·​ni·​a·​cal ˌa-mə-ˈnī-ə-kəl How to pronounce ammoniacal (audio)
variants or less commonly ammoniac
: of, relating to, containing, or resembling ammonia

Word History

First Known Use

1646, in the meaning defined above

Time Traveler
The first known use of ammoniacal was in 1646

Dictionary Entries Near ammoniacal

Cite this Entry

“Ammoniacal.” Dictionary, Merriam-Webster, Accessed 26 Feb. 2024.

Medical Definition


am·​mo·​ni·​a·​cal ˌam-ə-ˈnī-ə-kəl How to pronounce ammoniacal (audio)
variants also ammoniac
: of, relating to, containing, or having the properties of ammonia
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