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