A foot in which the arch of the instep is flattened so that the entire sole of the foot rests upon the ground; also, the deformity, usually congential, exhibited by such a foot; splayfoot.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). flat foot. Retrieved September 22, 2026, from http://smartdefine.org/flat_foot/definitions/2008452 |
| Chicago | Webster's. 2011. "flat foot" http://smartdefine.org/flat_foot/definitions/2008452 (accessed September 22, 2026). |
| Harvard | Webster's 2011, flat foot, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/flat_foot/definitions/2008452>. |
| MLA | Webster's. "flat foot" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/flat_foot/definitions/2008452> |