Rhyacian
English
Adjective
Rhyacian (not comparable)
- (geology) Of a geologic period within the Paleoproterozoic era from about 2300 to 2050 million years ago.
Proper noun
Rhyacian
- (geology) The Rhyacian period.
Translations
Rhyacian period
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Rhyacian (not comparable)
Rhyacian
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