n.
Pronunciation: -m ə -r ə s
Function: noun
Inflected Form: plural eph · e · mer · i · des \ ˌ e-f ə - ' mer- ə - ˌ d ē z \
Etymology: Latin, diary, ephemeris, from Greek eph ē meris, from eph ē meros
Date: 1508
: a tabular statement of the assigned places of a celestial body for regular intervals