What is the medical term for an artificial replacement of a missing part of the body?

The correct answer is the term "Prosthesis," which specifically refers to an artificial device that replaces a missing part of the body. This can include limbs, joints, or other body parts that have been lost due to congenital conditions, accidents, or surgeries. A prosthesis is designed to restore functionality and sometimes aesthetics, allowing individuals to regain mobility and improve their quality of life.

While "Implant" can sometimes refer to devices placed within the body (like dental implants or pacemakers), it does not encompass the broader definition of a prosthesis for external body parts. "Prosthetic device" describes any equipment designed to assist or replace a body part, but it is a more general term. "Reconstruction," on the other hand, typically involves surgical techniques to repair or restore tissue and does not necessarily involve replacing a part with an artificial device.