- (n.) The hagfish (Myxine).
- (n.) One that bores; an instrument for boring.
- (n.) One of the larvae of many species of insects, which penetrate trees, as the apple, peach, pine, etc. See Apple borer, under Apple.
- (n.) A marine, bivalve mollusk, of the genus Teredo and allies, which burrows in wood. See Teredo.
- (n.) Any bivalve mollusk (Saxicava, Lithodomus, etc.) which bores into limestone and similar substances.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). borer. Retrieved September 22, 2026, from http://smartdefine.org/borer/definitions/1981691 |
| Chicago | Webster's. 2011. "borer" http://smartdefine.org/borer/definitions/1981691 (accessed September 22, 2026). |
| Harvard | Webster's 2011, borer, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/borer/definitions/1981691>. |
| MLA | Webster's. "borer" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/borer/definitions/1981691> |