a division of time that is equal to the elapsed time between two consecutive returns of the same terrestrial meridian to the moon.
noun, Navigation. 1. the observed angle between the moon and another celestial body.
noun, (often initial capital letter) U.S. Aerospace. 1. . Abbreviation: LEM.
noun 1. See under (def 1a). [ih-klips] /ɪˈklɪps/ noun 1. Astronomy. 2. any obscuration of light. 3. a reduction or loss of splendor, status, reputation, etc.: Scandal caused the eclipse of his career. verb (used with object), eclipsed, eclipsing. 4. to cause to undergo eclipse: The moon eclipsed the sun. 5. to make less outstanding […]
[loo-nair-ee-uh n] /luˈnɛər i ən/ noun 1. a being supposedly inhabiting the moon. 2. a selenographer. /luːˈnɛərɪən/ noun 1. (archaic) an astronomer concerned with the moon; a selenographer 2. (myth) an inhabitant of the moon