- (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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). trephine. Retrieved September 22, 2026, from http://smartdefine.org/trephine/definitions/2074411 |
| Chicago | Webster's. 2011. "trephine" http://smartdefine.org/trephine/definitions/2074411 (accessed September 22, 2026). |
| Harvard | Webster's 2011, trephine, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/trephine/definitions/2074411>. |
| MLA | Webster's. "trephine" 28 May 2011. Web. 22 September 2026. <http://smartdefine.org/trephine/definitions/2074411> |