Word.ws English Dictionary

ephemeris

UK/ɪˈfɛməɹɪs//ɪˈfɛməɹəs/

ephemeris noun: a journal or diary.

ephemeris: Circular diagram with zodiac signs and celestial bodies
Photo by The New York Public Library on Unsplash

Noun

ephemeris (plural ephemerides or ephemerises)

  1. (obsolete) A journal or diary.
    • Wee heard the King was solacing at the Caspian Sea, whither now wee are travelling. Till then let us keepe an Ephemerides or day-journey.1638, Thomas Herbert, Some Yeares Travels, section I
  2. A table giving the apparent position of celestial bodies throughout the year; normally given as right ascension and declination.
    • […]Mr. Samuel got 150 pounds of bread, with a small quantity of rum and wine, also a quadrant and compass; but he was forbidden on pain of death to touch either map, ephemeris, book of astronomical observations, sextant, timekeeper, or any of my surveys or drawings.1792, William Bligh, chapter 13, in A Voyage to the South Sea
    Synonyms:
    almanac
  3. Computer software that calculates the apparent position of celestial bodies.

ephemeris meaning in Hindi, Tamil, Kannada and Persian

ephemeris in Hindi

table giving the apparent position of celestial bodies throughout the year
अब्दकोश abdakoś

ephemeris in Tamil

நாட்குறிப்பு, வான்கோள் நிலைவிளக்க இதழ்

ephemeris in Kannada

ಖಗೋಳ ಪಂಚಾಂಗ

ephemeris in Persian

table giving the apparent position of celestial bodies throughout the year
زیج, زیگ zig, دفتر سال daftar-e sâl

Synonyms of ephemeris

Forms of ephemeris

pluralephemerides
pluralephemerises

Plural of ephemeris: ephemerides or ephemerises

Origin of ephemeris

From New Latin ephēmeris, from Ancient Greek ἐφημερίς (ephēmerís, “diary, calendar”), from ἐφήμερος (ephḗmeros, “daily”).

Words formed from ephemeris

Questions about ephemeris

What does ephemeris mean?
Ephemeris means a journal or diary.
What is ephemeris in Hindi?
Ephemeris in Hindi is अब्दकोश (abdakoś). See Ephemeris meaning in Hindi.
What part of speech is ephemeris?
Ephemeris is a noun.
How do you pronounce ephemeris?
Ephemeris is pronounced /ɪˈfɛməɹɪs/ (UK).
What is the plural of ephemeris?
The plural of ephemeris is ephemerides.

Words near ephemeris in the dictionary

  1. ephemeric
  2. ephemerid
  3. ephemeride
  4. ephemerides
  5. ephemerids
  6. ephemeris
  7. ephemeris time
  8. ephemerises
  9. ephemerist
  10. ephemerists
  11. ephemeroid

Source and license

Adapted from Wiktionary: ephemeris (page history and authors); ephemeris (Tamil Wiktionary) (page history and authors); ephemeris (Kannada Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Wodencafe-ephemeris.wav.

Cite this entry: “ephemeris.” Word.ws, https://word.ws/ephemeris. Based on Wiktionary, CC BY-SA 4.0.