noun
- The meridian passing through Greenwich; was internationally adopted as the earth's zero of longitude in 1884. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). greenwich meridian. Retrieved September 29, 2026, from http://smartdefine.org/greenwich_meridian/definitions/1224339 |
| Chicago | WordNet. 2010. "greenwich meridian" http://smartdefine.org/greenwich_meridian/definitions/1224339 (accessed September 29, 2026). |
| Harvard | WordNet 2010, greenwich meridian, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/greenwich_meridian/definitions/1224339>. |
| MLA | WordNet. "greenwich meridian" 23 October 2010. Web. 29 September 2026. <http://smartdefine.org/greenwich_meridian/definitions/1224339> |