Hadean.
The Hadean eon; part of the Precambrian supereon, spanning from around 4.6 to 4 billion years ago.
Meaning & usage
The Hadean eon; part of the Precambrian supereon, spanning from around 4.6 to 4 billion years ago.
Where this word comes from
From Hades + -an, from Ancient Greek ᾍδης (Hāídēs). By surface analysis, had- + -e- + -an.
Pertaining to Hades or hell.
Of or relating to the Hadean geological eon.
Where this word comes from
From Hades + -an, from Ancient Greek ᾍδης (Hāídēs). By surface analysis, had- + -e- + -an.
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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.