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