dacryocystosyringotomy

dacryocystosyringotomy

(dăk″rē-ō-sĭs″tō-sĭr″ĭn-gŏt′ō-mē) [″ + kystis, cyst, + syrinx, tube, + tome, incision]
A surgically created opening between a lacrimal sac and the nasal cavity.