dacryocystorhinostomy UK /ˌdæ.kɹɪ.əʊˌsɪ.stəʊ.ɹaɪˈnɒs.tə.mi/US /ˌdæ.kɹi.oʊˌsɪs.toʊ.ɹaɪˈnɑs.tə.mi/ noun1 •a surgical procedure that creates a new passageway between the lacrimal sac and the nasal cavity to bypass a blockage in the normal tear drainage system, allowing tears to drain properly into the nose. formsdacryocystorhinostomies
