artificial limb; prosthesis
Medical and general term for a prosthetic arm or leg.
事故で足を失った後、彼は義肢を使って歩く練習を始めた。
After losing his leg in an accident, he began practicing walking with a prosthetic limb.
prosthetist and orthotist
Compound of 義 (ぎ, 'artificial, substitute') and 肢 (し, 'limb').