Definitions for proterozoic

Overview of noun proterozoic

The noun proterozoic has 1 senses? (no senses from tagged texts)

1. Proterozoic, Proterozoic eon, Proterozoic aeon

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

Overview of adj proterozoic

The adj proterozoic has 1 senses? (no senses from tagged texts)

1. proterozoic

(formed in the later of two divisions of the Precambrian era; "proterozoic life forms")