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Etymology edit

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Adjective edit

Cryogenian (comparative more Cryogenian, superlative most Cryogenian)

  1. (geology) Of a geologic period within the Neoproterozoic era from about 850 to 600 million years ago.

Proper noun edit

Cryogenian

  1. (geology) The Cryogenian period.

Translations edit

See also edit