sphincterotomy
noun
sphinc·ter·ot·o·my
ˌsfiŋk-tər-ˈät-ə-mē 
plural sphincterotomies
: surgical incision of a sphincter
Dictionary Entries Near sphincterotomy
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“Sphincterotomy.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/sphincterotomy. Accessed 15 Dec. 2024.
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