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.
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Anagrams
- esuprone, peroneus