eon

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e·on

also 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.

[Late Latin aeōn, from Greek aiōn; see aiw- in Indo-European roots.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

eon

(ˈiːən; ˈiːɒn)

the usual US spelling of aeon

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

e•on

or ae•on

(ˈi ən, ˈi ɒn)

n.

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]

e·on

(ē′ŏn′)

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

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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Noun	1.	eon - the longest division of geological time aeon geologic time, geological time - the time of the physical formation and development of the earth (especially prior to human history) geological era, era - a major division of geological time; an era is usually divided into two or more periods
	2.	eon - an immeasurably long period of time; "oh, that happened eons ago" aeon long time, years, age - a prolonged period of time; "we've known each other for ages"; "I haven't been there for years and years"
	3.	eon - (Gnosticism) a divine power or nature emanating from the Supreme Being and playing various roles in the operation of the universe aeon Gnosticism - a religious orientation advocating gnosis as the way to release a person's spiritual element; considered heresy by Christian churches spiritual being, supernatural being - an incorporeal being believed to have powers to affect the course of human events

eon

also aeon
noun

A long time:

eternity, long, year (used in plural).

Informal: age (used in plural), blue moon.

Idioms: forever and a day, forever and ever, month of Sundays.

Translations

Äon

añares eón evo

iänkaikkisuusiäsyysikuisuusmaailmankausi

éon

eonvječnost

eon wieczność

вечность тысяча лет целая вечность эон

References in classic literature ?

A people without written language, without art, without homes, without love; the victim of eons of the horrible community idea.

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Before us would unfold the forgotten story of the lost eons that have preceded us.

View in context

I told them that it was obvious our very existence depended upon our unity of action, that we were to all intent and purpose entering a new world as far from the seat and causes of our own world-war as if millions of miles of space and eons of time separated us from our past lives and habitations.

View in context

He had heard of the Krolus and the Galus--reputed to be still higher in the plane of evolution--and now he had indisputable evidence of a race possessing refinements of civilization eons in advance of the spear-men.

View in context

Two immediate advantages of the MOU is that the societies have agreed to a greater exchange of materials developed by each, particularly those in languages other than English, and to look at the development of improved Web-based cancer nursing resources for members of ONS and EONS.

ONS and European Oncology Nursing Society commit to closer collaboration

Eons.com offers news on hobbies and entertainment for older people, interactive games to improve brain strength, tips on how to live longer and a personalised longevity calculator.

Eons.com social networking website launched for US's over 50s

The car, called the Eon, has a three-cylinder, four-door, five-seat hatchback, and is slightly bigger than the much-hyped Tata Nano.