Hadean

English

Alternative forms

• Hadaean

Etymology

From Hades +‎ -an, from Ancient Greek ᾍδης (Hāídēs). By surface analysis, had- +‎ -e- +‎ -an.

Pronunciation

• IPA^(key): /heɪˈdiːən/, /ˈheɪ.diːən/

• Audio (Southern England):

  (file)

• Rhymes: -iːən, -eɪdiən

Proper noun

Hadean

1. (geology) The Hadean eon; part of the Precambrian supereon, spanning from around 4.6 to 4 billion years ago.

Hypernyms

• Precambrian

Coordinate terms

• Archaean, Proterozoic - eons in Precambrian

Translations

Hadean eon

• Dutch: hadeïcum (nl) n
• Estonian: hadaikum
• Finnish: hadeeinen aioni
• Greek: Καταρχαιοζωικός m (Katarchaiozoïkós)
• Hungarian: hadaikum (hu)
• Russian: катархе́й (ru) m (katarxéj), азо́й (ru) m (azój), гаде́й (ru) m (gadéj), преархе́й (ru) m (prearxéj), приско́й (ru) m (priskój), хэ́дий m (xɛ́dij)
• Spanish: Hádico m
• Swedish: hadeikum (sv) c

Adjective

Hadean (not comparable)

1. Pertaining to Hades or hell.

   Synonyms: Plutonian, Plutonic, Tartarean; see also Thesaurus:infernal

   • 1902, Frederic Crowninshield, A Painter's Moods, page 49:

     No Ceres weeps at the Hadean gate!

2. (geology) Of or relating to the Hadean geological eon.

Translations

pertaining to the geological eon

• Finnish: hadeeinen
• Greek: καταρχαιοζωικός (katarchaiozoïkós)
• Spanish: hádico
• Swedish: hadeisk (sv)

See also

• Appendix:Geologic timescale

Anagrams

• Dehaan, hadnae