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(; 277), n.[A dim. of 1st trepan: cf. F. trphine.] (Surg.) An instrument for trepanning, being an improvement on the trepan. It is a circular or cylindrical saw, with a handle like that of a gimlet, and a little sharp perforator called the center pin. Trephine" v. t.[imp. & p. p.Trephined (); p. pr. & vb. n.Trephining.] To perforate with a trephine; to trepan. スポンサード リンク
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