Prosthetic commonly refers to artificial limbs or body parts used to replace or assist impaired or amputated body parts. Synonyms for prosthetic include replacements, implants, artificial, bionic, and synthetic. Artificial and synthetic both refer to something not found in nature, while bionic may refer specifically to an electronic prosthetic with advanced technology. Replacements and implants may refer more broadly to any type of body part or function that is replaced or enhanced through surgery or mechanical means. These synonyms offer different nuances depending on the context and intended use of the prosthetic or substitute body part.