dacryocystostomy

noun
dac·​ryo·​cys·​tos·​to·​my | \ -sis-ˈtäs-tə-mē How to pronounce dacryocystostomy (audio) \
plural dacryocystostomies

Medical Definition of dacryocystostomy

: an operation on a lacrimal sac to form a new opening (as for drainage)

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