prosthesis
🇺🇸
/prɑːsˈθiːsɪs/
🇬🇧
/prɒsˈθiːsɪs/
An object that replaces a missing body part, like a leg or an arm.
After the accident, he had to use a prosthesis to walk.
意外之後,他不得不使用義肢行走。