ephemeris
/ɪˈfɛməɹəs/
Word Rarity
Very rare
Frequency: Zipf frequency 2.08 in modern English
16
Scrabble Score
9
Letters
1
Syllables
7
Unique Chars
Meaning
noun
A table giving the apparent position of celestial bodies throughout the year; normally given as right ascension and declination.
noun
Computer software that calculates the apparent position of celestial bodies.
Example Sentences
- "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."
- "[…]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."
Etymology
From New Latin ephēmeris, from Ancient Greek ἐφημερίς (ephēmerís, “diary, calendar”), from ἐφήμερος (ephḗmeros, “daily”).
Origin
Word Breakdown
- Root: ephēmeris, ἐφημερίς
Regional Pronunciation
- American English: /ɪˈfɛməɹəs/
- British English: /ɪˈfɛməɹɪs/