supereon en · NOUN
Pronunciation
- (US) audio
Etymology
From super- + eon.
Meanings
-
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:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| supereons | Number=Plur | lexicographic |