(DoD, NATO) The error in range, deflection, or in radius, which a weapon may be expected to exceed as often as not. Horizontal error of weapons making a nearly vertical approach to the target is described in terms of circular error probable. Horizontal error of weapons producing elliptical dispersion pattern is expressed in terms of probable error. See also circular error probable; delivery error; deviation; dispersion error.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
| APA | Military Dictionary (DoD). (2011). horizontal error. Retrieved September 21, 2026, from http://smartdefine.org/horizontal_error/definitions/1962045 |
| Chicago | Military Dictionary (DoD). 2011. "horizontal error" http://smartdefine.org/horizontal_error/definitions/1962045 (accessed September 21, 2026). |
| Harvard | Military Dictionary (DoD) 2011, horizontal error, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/horizontal_error/definitions/1962045>. |
| MLA | Military Dictionary (DoD). "horizontal error" 4 April 2011. Web. 21 September 2026. <http://smartdefine.org/horizontal_error/definitions/1962045> |