artificial leg; prosthetic leg
Refers to a prosthetic device replacing a missing leg. Used in medical, everyday, and news contexts.
事故で足を失った後、義足をつけて歩く練習を始めた。
After losing his leg in an accident, he started practicing walking with a prosthetic leg.
最新の義足はとても軽くて動きやすい。
The latest artificial legs are very light and easy to move in.
Compound of 義 (ぎ, 'artificial, substitute') and 足 (そく, 'foot, leg').