Hadean
/heɪˈdiːən/ proper noun, adjective
Forms Hadaean
- proper noun (geology) The Hadean eon; part of the Precambrian supereon, spanning from around 4.6 to 4 billion years ago.
- adjective Pertaining to Hades or hell.
- adjective (geology) Of or relating to the Hadean geological eon.
Synonyms
Plutonian Plutonic Tartarean Acherontic infernal hellish helly stygian subtartarean Hadean time Hadean eon Hadean aeon Priscoan Priscoan eon Priscoan aeon
Etymology
From Hades + -an, from Ancient Greek ᾍδης (Hāídēs). By surface analysis, had- + -e- + -an.
Sources: Wiktionary · WordNet 3.0 — from the Wiktionary entry “Hadean”, CC BY-SA 4.0. Details