2 definitions found From The Collaborative International Dictionary of English v.0.48 [gcide]: Ephemeris \E*phem"e*ris\, n.; pl. {Ephemerides}. [L., a diary, Gr. ?, also, a calendar, fr. ?. See {Ephemera}.] 1. A diary; a journal. --Johnson. [1913 Webster] 2. (Anat.) (a) A publication giving the computed places of the heavenly bodies for each day of the year, with other numerical data, for the use of the astronomer and navigator; an astronomical almanac; as, the "American Ephemeris and Nautical Almanac." (b) Any tabular statement of the assigned places of a heavenly body, as a planet or comet, on several successive days. [1913 Webster] 3. (Literature) A collective name for reviews, magazines, and all kinds of periodical literature. --Brande & C. [1913 Webster] From WordNet (r) 2.0 [wn]: ephemeris n : an annual publication containing astronomical tables that give the positions of the celestial bodies throughout the year; "today computers calculate the ephemerides" [also: {ephemerides} (pl)]
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