noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   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."

Example

More examples

"Sometimes the Hadean, Archean and Proterozoic are lumped together in a supereon called the Precambrian."

Etymology

From super- + eon.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.