Main Entry: dac·ryo·cys·to·rhi·nos·to·my Pronunciation: -"sis-t&-"rI-'näs-t&-mE Function: noun InflectedForm: plural-mies : surgical creation of a passage for drainage between the lacrimal sac and the nasal cavity
dacryocystorhinostomy dac·ry·o·cys·to·rhi·nos·to·my (dāk'rē-ō-sĭs'tə-rī-nŏs'tə-mē) n. The surgical opening of a passage for drainage from the lacrimal sac into the nasal cavity.