Hadean

adjective Ha·de·an \ ˈhā-ˌdē-ən , hā-ˈdē-ən \

Definition of Hadean

: of, relating to, or being the eon of history between the formation of the solar system and the formation of the first rocks on the earth — see Geologic Time Table

Hadean

noun

Origin and Etymology of hadean

Hades


Seen and Heard

What made you want to look up Hadean? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

food, provisions, or a tasty dish

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!