What is the term for surgically rebuilding a body part?

The term for surgically rebuilding a body part is "reconstruction." Reconstruction refers to surgical procedures that restore the form and function of a body part that has been damaged or removed due to trauma, illness, or congenital conditions. This can involve various techniques, such as using tissue from another part of the body (known as flap reconstruction) or implanting devices to replace lost structures.

In contrast, graft refers to a piece of living tissue that is transplanted surgically. Cryosurgery involves the use of extreme cold to destroy abnormal tissue, while chemosurgery entails the use of chemical agents to treat or remove diseased tissue. These terms, although related to surgical procedures, do not specifically denote the process of rebuilding a body part, which is why "reconstruction" is the most accurate choice.