osteotomy
截骨術
os·te·ot·o·my /ˌɑstɪˈɑtəmɪ/ 名詞
截骨術
Os·te·ot·o·my n.
1. The dissection or anatomy of bones; osteology.
2. Surg. The operation of dividing a bone or of cutting a piece out of it, -- done to remedy deformity, etc.
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osteotomy
n : surgical sectioning of bone