prosthesis
/ˈprɒsθɪsɪs/noun
(pl. prostheses /-siːz/)
1
- an artificial body part, such as a leg, a heart, or a breast implant（腿、心脏、乳房等）假体, 修复体：
his upper jaw was removed and a prosthesis was fitted.
他下巴的上半部分被切除, 装了个假体。
2
- the addition of a letter or syllable at the beginning of a word, as in Spanish escuela derived from Latin scola词首添字母（或音节）（如西班牙语的escuela派生于拉丁语scola）。
派生词
prosthetic
/-ˈθetɪk/ adjectiveprosthetically
adverb词源
mid 16th cent. (in sense 2)： via late Latin from Greek prosthesis，from prostithenai,from pros 'in addition'+tithenai 'to place'.