(a.) Right-angled; having one or more angles of ninety degrees.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). rectangular. Retrieved September 22, 2026, from http://smartdefine.org/rectangular/definitions/2053391 |
| Chicago | Webster's. 2011. "rectangular" http://smartdefine.org/rectangular/definitions/2053391 (accessed September 22, 2026). |
| Harvard | Webster's 2011, rectangular, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/rectangular/definitions/2053391>. |
| MLA | Webster's. "rectangular" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/rectangular/definitions/2053391> |