Final answer:
Gastrectomy refers to the surgical removal of part or all of the stomach, not the gallbladder, uterus, or lung.
Step-by-step explanation:
Gastrectomy is the term for excision of the stomach. This surgical procedure may be performed for various medical reasons, such as stomach cancer or severe ulcers. A gastrectomy involves the removal of part or all of the stomach. It is not to be confused with procedures involving other organs such as the gallbladder, which stores bile and is removed in a cholecystectomy; or the uterus, lung, and other organs, which are unrelated to the term gastrectomy.