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Etymology

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From cryogenic (of low temperature) +‎ -ian

Adjective

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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

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Cryogenian

  1. (geology) The Cryogenian period.

Translations

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See also

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