Hadean surface Synonyms

Hadean replaced

Definitions for 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
  • (adjective) of or relating to or characteristic of Hades or Tartarus

Synonyms for phrase

HS abbreviation

HS is an abbreviation for Hadean Surface
What does HS stand for?
HS stands for "Hadean Surface"

Definitions for Surface


  • (adjective) lying on or affecting only the outer layer of something
  • (noun) an outer part or layer
  • (verb) to come to one's attention especially gradually or unexpectedly