ephemeris

[ ih-fem-er-is ]

/ ɪˈfɛm ər ɪs /

SEE SYNONYMS FOR ephemeris ON THESAURUS.COM

noun, plural e·phe·mer·i·des [ef-uh-mer-i-deez]. /ˌɛf əˈmɛr ɪˌdiz/.

a table showing the positions of a heavenly body on a number of dates in a regular sequence.

an astronomical almanac containing such tables.

Archaic. an almanac or calendar.

Origin of ephemeris

1545–55; <Latin ephēmeris day book, diary <Greek ephēmerís diary, account book, derivative of ephḗmeros;see ephemeral

Words nearby ephemeris

ephelis, ephemera, ephemeral, ephemerality, ephemerid, ephemeris, ephemeris second, ephemeris time, ephemeron, ephemeropteran, ephemerous

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for ephemeris

Its position with respect to Saturn on any given date can be learned from the Ephemeris.
Astronomy with an Opera-glass|Garrett Putman Serviss
On a nail by the side of the great fireplace hung proudly and prominently the Family Almanac, the Ephemeris.
Customs and Fashions in Old New England|Alice Morse Earle
An Ephemeris is an almanac of the planetary positions day by day throughout any given year.
Astrology|Sepharial
And now not only is it slightly off course, but so is every ephemeris printed on Mert.
Conquest Over Time|Michael Shaara

Take in hand, then, the Ephemeris for the year of your birth and read this chapter with it in view.
Astrology|Sepharial

British Dictionary definitions for ephemeris

ephemeris

/ (ɪˈfɛmərɪs) /

noun plural ephemerides (ˌɛfɪˈmɛrɪˌdiːz)

a table giving the future positions of a planet, comet, or satellite

an annual publication giving the positions of the sun, moon, and planets during the course of a year, information concerning eclipses, astronomical constants, etc

obsolete a diary or almanac

Word Origin for ephemeris

C16: from Latin, from Greek: diary, journal; see ephemeral

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for ephemeris

ephemeris

[ ĭ-fĕm′ər-ĭs ]

Plural ephemerides (ĕf′ə-mĕr′ə-dēz′)

A table giving the coordinates of a celestial body at specific times during a given period. Ephemerides can be used by navigators to determine their longitude while at sea and by astronomers in following objects such as comets. The use of computers has allowed modern ephemerides to determine celestial positions with far greater accuracy than in earlier publications.

单词	ephemeris
释义	ephemeris [ ih-fem-er-is ] / ɪˈfɛm ər ɪs / SEE SYNONYMS FOR ephemeris ON THESAURUS.COM noun, plural e·phe·mer·i·des [ef-uh-mer-i-deez]. /ˌɛf əˈmɛr ɪˌdiz/. a table showing the positions of a heavenly body on a number of dates in a regular sequence. an astronomical almanac containing such tables. Archaic. an almanac or calendar. Origin of ephemeris 1545–55; <Latin ephēmeris day book, diary <Greek ephēmerís diary, account book, derivative of ephḗmeros;see ephemeral Words nearby ephemeris ephelis, ephemera, ephemeral, ephemerality, ephemerid, ephemeris, ephemeris second, ephemeris time, ephemeron, ephemeropteran, ephemerous Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for ephemeris Its position with respect to Saturn on any given date can be learned from the Ephemeris. Astronomy with an Opera-glass\|Garrett Putman Serviss On a nail by the side of the great fireplace hung proudly and prominently the Family Almanac, the Ephemeris. Customs and Fashions in Old New England\|Alice Morse Earle An Ephemeris is an almanac of the planetary positions day by day throughout any given year. Astrology\|Sepharial And now not only is it slightly off course, but so is every ephemeris printed on Mert. Conquest Over Time\|Michael Shaara Take in hand, then, the Ephemeris for the year of your birth and read this chapter with it in view. Astrology\|Sepharial British Dictionary definitions for ephemeris ephemeris / (ɪˈfɛmərɪs) / noun plural ephemerides (ˌɛfɪˈmɛrɪˌdiːz) a table giving the future positions of a planet, comet, or satellite an annual publication giving the positions of the sun, moon, and planets during the course of a year, information concerning eclipses, astronomical constants, etc obsolete a diary or almanac Word Origin for ephemeris C16: from Latin, from Greek: diary, journal; see ephemeral Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to ephemeris journal, calendar, yearbook, register, chronicle, annual, record, registry Scientific definitions for ephemeris ephemeris [ ĭ-fĕm′ər-ĭs ] Plural ephemerides (ĕf′ə-mĕr′ə-dēz′) A table giving the coordinates of a celestial body at specific times during a given period. Ephemerides can be used by navigators to determine their longitude while at sea and by astronomers in following objects such as comets. The use of computers has allowed modern ephemerides to determine celestial positions with far greater accuracy than in earlier publications. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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ephemeris

noun, plural e·phe·mer·i·des [ef-uh-mer-i-deez]. /ˌɛf əˈmɛr ɪˌdiz/.

Origin of ephemeris

Words nearby ephemeris

Example sentences from the Web for ephemeris

British Dictionary definitions for ephemeris

noun plural ephemerides (ˌɛfɪˈmɛrɪˌdiːz)

Word Origin for ephemeris

Words related to ephemeris

Scientific definitions for ephemeris

Plural ephemerides (ĕf′ə-mĕr′ə-dēz′)