Calymmian
English
Etymology
From Ancient Greek κάλυμμα (kálumma, “covering”).
Proper noun
Calymmian
- (geology) the Calymmian period
Translations
Calymmian period
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Adjective
Calymmian (comparative more Calymmian, superlative most Calymmian)
- (geology) of a geologic period within the Mesoproterozoic era from about 1600 to 1400 million years ago