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aeon

[ee-uh n, ee-on] /ˈi ən, ˈi ɒn/
noun
1.
(in Gnosticism) one of a class of powers or beings conceived as emanating from the Supreme Being and performing various functions in the operations of the universe.
2.
eon.
Origin of aeon
1640-1650
1640-50; < Late Latin < Greek aiṓn space of time, age

eon

or aeon

[ee-uh n, ee-on] /ˈi ən, ˈi ɒn/
noun
1.
an indefinitely long period of time; age.
2.
the largest division of geologic time, comprising two or more eras.
3.
Astronomy. one billion years.
Origin
see aeon
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for aeon
Contemporary Examples
Historical Examples
  • Eight years have elapsed since that day and this writing—an aeon in this rapidly moving Republic of ours.

    A Modern Chronicle, Complete Winston Churchill
  • It seemed as if he had reached sanctuary after an aeon of chaos.

    Garrison's Finish W. B. M. Ferguson
  • Don't you remember what happened to the passengers of the aeon, when that steamer was wrecked on Christmas Island?

    By Right of Conquest Arthur Hornblow
  • After what seemed an aeon, they saw that it was daylight outside.

  • For a moment, precious as an aeon, she held her hands upon me—then slowly opened her eyes.

    Wilfrid Cumbermede George MacDonald
  • For a moment that had to Letty the air of an aeon, Godfrey stood peering.

    Mary Marston George MacDonald
  • And he says that this world (aeon) was constructed defectively by Dominions and Principalities of evil.

    Simon Magus George Robert Stow Mead
  • An aeon might have elapsed since he had walked down the white marble of its aisle toward the crouching figure in the pew.

  • When it was spent, they would rest for aeon, then stir again.

    Lewis Rand Mary Johnston
British Dictionary definitions for aeon

aeon

/ˈiːən; ˈiːɒn/
noun
1.
an immeasurably long period of time; age
2.
a period of one thousand million years
3.
(often capital) (gnosticism) one of the powers emanating from the supreme being and culminating in the demiurge
Word Origin
C17: from Greek aiōn an infinitely long time

eon

/ˈiːən; ˈiːɒn/
noun
1.
the usual US spelling of aeon
2.
(geology) the longest division of geological time, comprising two or more eras
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
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Word Origin and History for aeon
n.

1640s; see eon.

eon

n.

1640s, from Latin aeon, from Greek aion "age, vital force, a period of existence, lifetime, generation;" in plural, "eternity," from PIE root *aiw- "vital force, life, long life, eternity" (cf. Sanskrit ayu "life," Avestan ayu "age," Latin aevum "space of time, eternity," Gothic aiws "age, eternity," Old Norse ævi "lifetime," German ewig "everlasting," Old English a "ever, always").

Online Etymology Dictionary, © 2010 Douglas Harper
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aeon in Science
eon
  (ē'ŏn')   
The longest division of geologic time, containing two or more eras.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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