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