Calymmian.
Denoting a geologic period within the Mesoproterozoic era from about 1600 to 1400 million years ago.
Meaning & usage
Denoting a geologic period within the Mesoproterozoic era from about 1600 to 1400 million years ago.
Where this word comes from
From Ancient Greek κάλυμμα (kálumma, “covering”).
The Calymmian period.
Where this word comes from
From Ancient Greek κάλυμμα (kálumma, “covering”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.