PROTEROZOIC AEON

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

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

Synonyms:

Proterozoic; Proterozoic aeon; Proterozoic eon

Classified under:

Nouns denoting time and temporal relations

Instance hypernyms:

aeon; eon (the longest division of geological time)

Holonyms ("Proterozoic aeon" is a part of...):

Precambrian; Precambrian aeon; Precambrian eon; Precambrian period (the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago)

Credits