Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
ammoniacal is an adjective meaning "pertaining to or containing or similar to ammonia". It carries one recorded sense.
pertaining to or containing or similar to ammonia
Definitions, synonyms and semantic relations for ammoniacal come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.