A surgical opening made into the stomach, or in some cases, a procedure connecting two parts of the stomach.
From gastro- (stomach) + gastro- (stomach again) + -tomy (Greek tome, cutting). The doubled gastro- emphasizes that this procedure involves the stomach, with the second element sometimes indicating a specific part.
The repetition in 'gastrogastrotomy' might seem redundant, but it actually matters in surgical language—it can specify that you're connecting one part of the stomach to another, like in weight-loss surgery. Medical terminology often builds complexity by stacking meanings to be super precise about what happens during an operation.
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