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