E*phem"e*ris (?), n.; pl. Ephemerides (#). [L., a diary, Gr. , also, a calendar, fr. . See Ephemera.]
A diary; a journal.
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."
Any tabular statement of the assigned places of a heavenly body, as a planet or comet, on several successive days.
A collective name for reviews, magazines, and all kinds of periodical literature.
Brande & C.
© Webster 1913.