Distance measured east or west on the earth's surface, measured by the angle which the meridian through a place makes with some standard meridian, as that of Greenwich, Great Britain or Paris, France.' longitude' may be measured in time (longitude in time) or in degrees (longitude in arc). (See latitude, meridian).
Barry Goldsmith
| APA | Barry Goldsmith. (2010). longitude. Retrieved September 22, 2026, from http://smartdefine.org/longitude/definitions/1157562 |
| Chicago | Barry Goldsmith. 2010. "longitude" http://smartdefine.org/longitude/definitions/1157562 (accessed September 22, 2026). |
| Harvard | Barry Goldsmith 2010, longitude, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/longitude/definitions/1157562>. |
| MLA | Barry Goldsmith. "longitude" 21 October 2010. Web. 22 September 2026. <http://smartdefine.org/longitude/definitions/1157562> |