noun
gastrectomy
Medical term for surgical removal of all or part of the stomach.
胃切除術は、胃がんの治療として行われることがあります。
Gastrectomy may be performed as a treatment for stomach cancer.
Compound of 胃 (i, 'stomach'), 切除 (setsujo, 'excision'), and 術 (jutsu, 'technique/surgery').