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