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Eon: meaning, definitions and examples

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eon

 

[ หˆiห.ษ™n ]

Noun
Context #1 | Noun

time period

An eon is a long and indefinite period of time, often used in geology and astronomy. In geological terms, an eon is the largest division of geological time, comprising several eras. An eon can span billions of years and is often categorized into different epochs. The term is also sometimes used more colloquially to describe any lengthy period.

Synonyms

age, epoch, era, period

Examples of usage

  • The Earth has existed for more than four eons.
  • We are currently living in the Phanerozoic eon.
  • The changes in climate occurred over several eons.
  • Studying eons helps scientists understand Earth's history.

Translations

Translations of the word "eon" in other languages:

๐Ÿ‡ต๐Ÿ‡น eรณn

๐Ÿ‡ฎ๐Ÿ‡ณ เคฏเฅเค—

๐Ÿ‡ฉ๐Ÿ‡ช ร„on

๐Ÿ‡ฎ๐Ÿ‡ฉ eon

๐Ÿ‡บ๐Ÿ‡ฆ ะตะพะฝ

๐Ÿ‡ต๐Ÿ‡ฑ eon

๐Ÿ‡ฏ๐Ÿ‡ต ใ‚จใ‚ชใƒณ

๐Ÿ‡ซ๐Ÿ‡ท รฉon

๐Ÿ‡ช๐Ÿ‡ธ eรณn

๐Ÿ‡น๐Ÿ‡ท eon

๐Ÿ‡ฐ๐Ÿ‡ท ์ด์˜จ

๐Ÿ‡ธ๐Ÿ‡ฆ ุนุตุฑ

๐Ÿ‡จ๐Ÿ‡ฟ eon

๐Ÿ‡ธ๐Ÿ‡ฐ eรณn

๐Ÿ‡จ๐Ÿ‡ณ ็บชๅ…ƒ

๐Ÿ‡ธ๐Ÿ‡ฎ eon

๐Ÿ‡ฎ๐Ÿ‡ธ eon

๐Ÿ‡ฐ๐Ÿ‡ฟ ัะพะฝ

๐Ÿ‡ฌ๐Ÿ‡ช แƒ”แƒแƒœแƒ˜

๐Ÿ‡ฆ๐Ÿ‡ฟ eon

๐Ÿ‡ฒ๐Ÿ‡ฝ eรณn

Etymology

The word 'eon' originates from the Greek word 'aiลn', which means 'age' or 'lifetime'. This term was adapted into Latin as 'aion'. In the 16th century, 'eon' began to take on its current geological meaning, denoting an indefinitely long span of time perceived in the context of Earth's history. The concept became more formalized with advancements in geology during the 19th century when scientists sought to categorize Earth's timeline. Over time, eons were defined as the largest divisions of geological time, anchoring periods such as the Precambrian and the Phanerozoic in the geological time scale.

Word Frequency Rank

At rank #27,661, this word represents specialized academic or technical vocabulary. It's less frequently encountered but may be valuable in specific contexts.