Cryogenian
English
Etymology
(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)
Adjective
Cryogenian (comparative more Cryogenian, superlative most Cryogenian)
- (geology) Of a geologic period within the Neoproterozoic era from about 850 to 600 million years ago.
Proper noun
Cryogenian
- (geology) The Cryogenian period.
Translations
Cryogenian period
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