/ Dictionary / Index E ephemeris: Meaning and Definition of Find definitions for: e•phem•er•is Pronunciation: (i-fem'ur-is), [key] — pl. e•phe•mer•i•des a table showing the positions of a heavenly body on a number of dates in a regular sequence. an astronomical almanac containing such tables. an almanac or calendar. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ephemeris (Thesaurus) ephemerid ephemeris second Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language