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supereon

noun

supereon

noun

Etymology From super- + eon.

1

Geography, Geology, Natural sciences A time period encompassing more than one eon, principally used to characterize the Precambrian.

  • Sometimes the Hadean, Archean and Proterozoic are lumped together in a supereon called the Precambrian.2015, Charles S. Cockell, Astrobiology: Understanding Life in the Universe, page 254:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.