| 单词 | trephine |
| 释义 | trephine —trephination /tref'euh nay"sheuhn/, n. /tri fuyn", -feen"/, n. , v. , trephined, trephining. Surg. n. 1. a small circular saw with a center pin mounted on a strong hollow metal shaft to which is attached a transverse handle: used in surgery to remove circular disks of bone from the skull. v.t. 2. to operate upon with a trephine. [1620-30; sp. var. of trefine, orig. trafine, b. trapan (var. of TREPAN1) and L phrase tres fines three ends (the inventor's explanation)] |
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