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aeon

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ae⋅on

[ee-uhn, ee-on]
–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:
1640–50; < LL < Gk ain space of time, age

e⋅on

[ee-uhn, ee-on]
–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.
Also, aeon.


Origin:
see aeon
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To aeon
ae·on   (ē'ŏn', ē'ən)   
n.  Variant of eon.
e·on also ae·on   (ē'ŏn', ē'ən)   
n.  
  1. An indefinitely long period of time; an age.

  2. The longest division of geologic time, containing two or more eras.


[Late Latin aeōn, from Greek aiōn; see aiw- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Science Dictionary
eon   (ē'ŏn')  Pronunciation Key 
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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