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retractor n. 取消前言的人,收縮肌,牽引器 取消前言的人,收縮肌,牽引器 retractor n 1: surgical instrument that holds back the edges of a surgical incision Retractor \Re*tract"or\ (r[-e]*tr[=a]kt"[~e]r), n.
One who, or that which, retracts. Specifically: (a) In breech-loading firearms, a device for withdrawing a cartridge shell from the barrel. (b) (Surg.) An instrument for holding apart the edges of a wound during amputation. (c) (Surg.) A bandage to protect the soft parts from injury by the saw during amputation. (d) (Anat. & Zool.) A muscle serving to draw in any organ or part. See Illust. under {Phylactolaemata}. [1913 Webster]
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