Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
data-based is an adjective meaning "relying on observation or experiment". It carries one recorded sense.
relying on observation or experiment
“experimental results that supported the hypothesis”
Definitions, synonyms and semantic relations for data-based come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.