What does "supereon" mean?

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

What is a synonym for "supereon"?

Common synonyms include: precambrian.

noun

noun ·Rare ·Advanced level

Noun

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."

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

From super- + eon.