| 单词 | prosthesis | 
| 释义 | pros·the·sis   (prŏs-thēsĭs) n. pl.   pros·the·ses (-sēz)  1.  An artificial device used to replace a missing body part, such as a limb, tooth, eye, or heart valve. 2.  Replacement of a missing body part with such a device. 3.  Linguistics   Prothesis. [Greek, addition, from prostithenai, prosthe-, to add : pros-, pros- + tithenai, to put; see  dhē- in the Appendix of Indo-European roots.]  prosthesis athlete wearing a prosthetic leg used for running | 
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