Establishment of a communication between the stomach and the duodenum. [gastro- + duodenum + G. stoma, mouth]
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gas·tro·du·o·de·nos·to·my -.d(y)ü-ə-(.)dē-'näs-tə-mē, -d(y)u̇-.äd-ən-'äs-tə-mē n, pl -mies surgical formation of a passage between the stomach and the duodenum
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n.
a surgical operation in which the duodenum (usually the third or fourth part) is joined to an opening made in the stomach in order to bypass an obstruction (such as pyloric stenosis) or to facilitate the exit of food from the stomach after vagotomy. See also duodenostomy.
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gas·tro·du·o·de·nos·to·my (gas″tro-doo″o-də-nosґtə-me) [gastro- + duodeno- + -stomy] 1. gastroenterostomy between the stomach and the duodenum. 2. the opening so created.Medical dictionary. 2011.