Associations to the word «Hadean»

Wiktionary

HADEAN, adjective. Pertaining to Hades or hell.
HADEAN, adjective. (geology) Of, or relating to the geologic eon from about 4,600 to 3,800 million years ago; marked by the formation of the solar system, a stable Earth-Moon orbit and the first rocks.
HADEAN, proper noun. (geology) The eon before 4,000 Ma.
HADEAN TIME, proper noun. (geology) The geologic eon from about 4,600 to 3,800 million years ago; marked by the formation of the first rocks.

Dictionary definition

HADEAN, noun. 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.
HADEAN, adjective. Of or relating to or characteristic of Hades or Tartarus.

Wise words

Words differently arranged have a different meaning, and meanings differently arranged have different effects.
Blaise Pascal