Trephine
[tri'fain]
Definition
(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.
(v. t.) To perforate with a trephine; to trepan.
Typed by Gladys
Synonyms and Synonymous
v. a. Trepan.
Editor: Ozzie
Definition
n. the modern trepan having a little sharp borer called the centre-pin.—v.t. to perforate with the trephine.
Typist: Lucinda