prosthetic

Etymology

From Ancient Greek προσθετικός (prosthetikós, “adding; repletive; giving additional power”), from πρόσθεσις (prósthesis, “addition”), from προστίθημι (prostíthēmi, “I add”), from πρός (prós, “towards”) + τίθημι (títhēmi, “I place”).

adj

1. artificial, acting as a substitute for part of the body; relating to prosthesis
   prosthetic leg/arm

noun

1. An artificial replacement for part of the body; a prosthesis, prosthetic device.
2. An addition to an actor etc.'s body as part of a costume, intended to transform the person's appearance.