Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
interdenominational is an adjective meaning "occurring between or among or common to different churches or denominations". It carries one recorded sense.
occurring between or among or common to different churches or denominations
“interchurch aid”
“interdenominational cooperation between Methodists and Presbyterians”
Definitions, synonyms and semantic relations for interdenominational come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.