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It is a good thing that life is not as serious as it seems to a waiter.Don Herold
- Rhymes: -əʊɪk
AdjectiveProterozoic (not comparable)
- (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.
- (geology) The Proterozoic eon.
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