HADEAN

Pronunciation (US):

(GB):

 Dictionary entry overview: What does Hadean mean? 

• HADEAN (noun)
  The noun HADEAN has 1 sense:

1. the earliest eon in the history of the Earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life

  Familiarity information: HADEAN used as a noun is very rare.

• HADEAN (adjective)
  The adjective HADEAN has 1 sense:

1. of or relating to or characteristic of Hades or Tartarus

  Familiarity information: HADEAN used as an adjective is very rare.

 Dictionary entry details 

• HADEAN (noun)

Sense 1

Meaning:

The earliest eon in the history of the Earth from the first accretion of planetary material (around 4,600 million years ago) until the date of the oldest known rocks (about 3,800 million years ago); no evidence of life

Classified under:

Nouns denoting time and temporal relations

Synonyms:

Hadean; Hadean aeon; Hadean eon; Hadean time; Priscoan; Priscoan aeon; Priscoan eon

Instance hypernyms:

aeon; eon (the longest division of geological time)

• HADEAN (adjective)

Sense 1

Meaning:

Of or relating to or characteristic of Hades or Tartarus

Synonyms:

Hadean; Plutonian; Tartarean

Similar:

infernal (being of the underworld)

Derivation:

Hades ((Greek mythology) the god of the underworld in ancient mythology; brother of Zeus and husband of Persephone)