Lexic.us

Definition of Proterozoic

1. Adjective. Formed in the later of two divisions of the Precambrian era. "Proterozoic life forms"

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

Definition of Proterozoic

1. Adjective. (geology) Of, or relating to the geologic eon from about 2,500 to 570 million years ago; comprises the Paleoproterozoic, Mesoproterozoic and Neoproterozoic eras; marked by the build up of oxygen in the atmosphere and the emergence of primitive multicellular life. ¹

2. Proper noun. (geology) The Proterozoic eon. ¹

¹ Source: wiktionary.com

Lexicographical Neighbors of Proterozoic

Prostigmin Protagoras Protagorean Protea cynaroides Protea mellifera Proteaceae Proteales Protean Proteas Protector of Boundaries

Protectorate of Bohemia and Moravia Proteidae Proteles Proteles cristata Proterochampsa Proterozoic (current term) Proterozoic aeon Proterozoic eon Protestancy Protestant

Protestant Church Protestant Episcopal Church Protestant Movement Protestant Reformation Protestant Reich Church Protestant deacon Protestant denomination Protestant ethic Protestant work ethic Protestantism

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