2 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Ephemeris \E*phem"e*ris\, n.; pl {Ephemerides}. [L., a diary,
Gr ?, also a calendar, fr ?. See {Ephemera}.]
1. A diary; a journal. --Johnson.
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.
3. (Literature) A collective name for reviews, magazines, and
all kinds of periodical literature. --Brande & C.
From WordNet r 1.6 [wn]:
ephemeris
n : an annual publication containing tables that give the
positions of the celestial bodies throughout the year;
"today computers calculate the ephemerides"
more about ephemeris
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