Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
prepupal is an adjective meaning "of an inactive stage in the development of some insects, between the larval and the pupal stages". It carries one recorded sense.
of an inactive stage in the development of some insects, between the larval and the pupal stages
“the prepupal stage”
Definitions, synonyms and semantic relations for prepupal come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.