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e·onalso ae·on (ē′ŏn′, ē′ən)
1. An indefinitely long period of time; an age.
2. The longest division of geologic time, containing two or more eras.
the usual US spelling of aeon
or ae•on(ˈi ən, ˈi ɒn)
1. an indefinitely long period of time; age.
2. the largest division of geologic time, comprising two or more eras.
3. one billion years.
[1640–50; < Late Latin aeōn < Greek aiṓn space of time, age]
The longest division of geologic time, containing two or more eras.
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|Noun||1.||eon - the longest division of geological time|
geologic time, geological time - the time of the physical formation and development of the earth (especially prior to human history)
|2.||eon - an immeasurably long period of time; "oh, that happened eons ago"|
|3.||eon - (Gnosticism) a divine power or nature emanating from the Supreme Being and playing various roles in the operation of the universe|
Gnosticism - a religious orientation advocating gnosis as the way to release a person's spiritual element; considered heresy by Christian churches