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A Writer's Dictionary:

Proterozoic Definition


Dictionary Home » Words Starting with P » proteas ... provincial » Proterozoic


Proterozoic
adj
    1. Relating to the geological era from which the oldest forms of life date.
    2. sometimes
noun
    1. The Proterozoic era.
      Form: the Proterozoic
Etymology: Early 20c: from Greek proteros earlier + zoe life + -ic.



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