supereon

See also: supereón

English

super- +‎ eon

supereon (plural supereons)

(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.

单词	supereon
释义	supereon See also: supereón English Etymology super- +‎ eon Noun supereon (plural supereons) (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 esuprone, peroneus
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