• Trephining Definition & Synonyms
- (p. pr. & vb. n.) of Trephine
• Trephine Definition & Synonyms
- (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.