antrectomy

noun

an·​trec·​to·​my an-ˈtrek-tə-mē 

plural antrectomies

: surgical removal of the lower portion of the stomach

Note: Antrectomy may be performed for several reasons including treatment of peptic ulcers, gastric obstruction, or malignant tumors.

After antrectomy, gastrin levels returned to normal in all three patients.

—Irvin M. Modlin and George Sachs