Definitions for "Trephine"
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.
To perforate with a trephine; to trepan.
A “T” shaped instrument used for removing a disk of bone, usually from the skull, also a verb. tres fines, three ends)
Keywords:  operate
operate on with a trephine