- (n.) A treatise in this science.
- (n.) That branch of mathematics which treats of the relations of the sides and angles of triangles, which the methods of deducing from certain given parts other required parts, and also of the general relations which exist between the trigonometrical functions of arcs or angles.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). trigonometry. Retrieved September 22, 2026, from http://smartdefine.org/trigonometry/definitions/2074676 |
| Chicago | Webster's. 2011. "trigonometry" http://smartdefine.org/trigonometry/definitions/2074676 (accessed September 22, 2026). |
| Harvard | Webster's 2011, trigonometry, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/trigonometry/definitions/2074676>. |
| MLA | Webster's. "trigonometry" 28 May 2011. Web. 22 September 2026. <http://smartdefine.org/trigonometry/definitions/2074676> |