ephemeris
n.,
pl. eph[e[mer[i[des 7ef#! mer4! dcz#8 5L < Gr ephcmeris, diary, calendar < ephcmeros: see fol.6
1 a table giving the computed positions of a celestial body for every day of a given period
2 an astronomical almanac containing such tables
3 [Obs.] a calendar or diary