Definitions for meridian, astronomical
This page provides all possible meanings and translations of the word meridian, astronomical
The Standard Electrical Dictionary
The great circle passing through the north and south poles of the celestial sphere. It lies in a plane with the corresponding geographical or terrestrial meridian.
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"meridian, astronomical." Definitions.net. STANDS4 LLC, 2013. Web. 9 Dec. 2013. <http://www.definitions.net/definition/meridian, astronomical>.