(n.) A curve, of the fourth degree, first made use of by the Greek geometer, Nicomedes, who invented it for the purpose of trisecting an angle and duplicating the cube.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). conchoid. Retrieved September 20, 2026, from http://smartdefine.org/conchoid/definitions/1989925 |
| Chicago | Webster's. 2011. "conchoid" http://smartdefine.org/conchoid/definitions/1989925 (accessed September 20, 2026). |
| Harvard | Webster's 2011, conchoid, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/conchoid/definitions/1989925>. |
| MLA | Webster's. "conchoid" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/conchoid/definitions/1989925> |