Trephine(n.) 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.) To perforate with a trephine; to trepan.
Trephined(imp. & p. p.) of Trephine
Trephining(p. pr. & vb. n.) of Trephine

Words within trephine