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