proterozoic aeon

1. 1.

   from 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms

   SynonymsProterozoicProterozoic eon

   Broadereon

   Part ofPrecambrian

Questions about proterozoic aeon

What does proterozoic aeon mean?

proterozoic aeon means "from 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms".

What is another word for proterozoic aeon?

Close synonyms include Proterozoic, Proterozoic eon. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is proterozoic aeon a common word?

proterozoic aeon is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.