PROTEROZOIC AEON as NOUN

1. Meaning
   • from 2,500 to 544 million years ago
   • bacteria and fungi
   • primitive multicellular organisms
   Synonym(s)
   • Proterozoic (what does Proterozoic mean?)
   • Proterozoic eon (what does Proterozoic eon mean?)
   Hypernyms(s) Proterozoic aeon is a kind of… Example: animal is a hypernym of mammal, plant is a hypernym of flower
   • eon (what does eon mean?)
   • aeon (what does aeon mean?)