supereon

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See also: supereón

English

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Etymology

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super- +‎ eon

Noun

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supereon (plural supereons)

  1. (geology) A time period encompassing more than one eon, principally used to characterize the Precambrian.
    • 2015, Charles S. Cockell, Astrobiology: Understanding Life in the Universe, page 254:
      Sometimes the Hadean, Archean and Proterozoic are lumped together in a supereon called the Precambrian.

Anagrams

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