Ephemerides

Acceptable For Game Play - US & UK word lists

This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

Wiktionary, Creative Commons Attribution/Share-Alike License
  • n. Plural form of ephemeris.
  • n. An ephemeris.
  • The Century Dictionary and Cyclopedia
  • n. Plural of ephemeris; formerly sometimes used as a singular.
  • Word Usage
    "And, although the ephemerides of the inner planets are very well known, most likely due to accurate radar measurements in part, this is the first time that such precision is possible for an outer planet."