What is an artificial part that replaces a natural part called?

A prosthesis is an artificial device that is specifically designed to replace a missing body part, such as a leg or arm, with the goal of restoring function and, in some cases, esthetics. Prosthetics are typically customized for each individual to ensure comfort and functionality, allowing them to perform daily activities more effectively. These devices can include artificial limbs, dental implants, and even ocular prosthetics.

In this context, the term effectively encompasses any device created to serve as a substitute for a natural body part that has been lost or is non-functional due to injury, disease, or congenital conditions. The choice of "prosthesis" underscores the importance of functionality and fitting in rehabilitation and patient care. This term is widely used in medical and therapeutic fields, reinforcing its relevance in discussions about health science and patient assistance.