(n.) An internal muscle arising from the lumbar vertebrae and inserted into the femur. In man there are usually two on each side, and the larger one or great psoas, forms a part of the iliopsoas.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). psoas. Retrieved September 30, 2026, from http://smartdefine.org/psoas/definitions/2050552 |
| Chicago | Webster's. 2011. "psoas" http://smartdefine.org/psoas/definitions/2050552 (accessed September 30, 2026). |
| Harvard | Webster's 2011, psoas, Smart Define, viewed 30 September, 2026, <http://smartdefine.org/psoas/definitions/2050552>. |
| MLA | Webster's. "psoas" 27 May 2011. Web. 30 September 2026. <http://smartdefine.org/psoas/definitions/2050552> |