aeon

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noun ae·on \ˈē-ən, ˈē-ˌän\

Definition of aeon

  1. 1 :  an immeasurably or indefinitely long period of time :  age

  2. 2 a usually eon :  a very large division of geologic time usually longer than an era b :  a unit of geologic time equal to one billion years

Examples of aeon in a sentence

  1. <it's been aeons since I saw a movie at the multiplex>

  2. <glaciers that formed aeons ago>

Variants of aeon

or

Origin and Etymology of aeon

Latin, from Greek aiōn — more at aye


First Known Use: circa 1642

Other Weights and Measures Terms


AEON Defined for Kids

aeon

play
noun ae·on \ˈē-ən, ˈē-ˌän\

Definition of aeon for Students

  1. :  a very long period of time <I haven't been to the movies in aeons.>

Variants of aeon

or

eon

\ˈē-ən, ˈē-ˌän\


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to decrease in size, extent, or degree

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