Definitions for hadean
heɪˈdi ən, ˈheɪ di ənhadean

Princeton's WordNetRate this definition:0.0 / 0 votes

1. Hadean, Hadean time, Hadean eon, Hadean aeon, Priscoan, Priscoan eon, Priscoan aeonadjective

   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

2. Hadean, Plutonian, Tartareanadjective

   of or relating to or characteristic of Hades or Tartarus

WiktionaryRate this definition:1.0 / 1 vote

1. Hadeannoun

   The Hadean eon.

2. Hadeanadjective

   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.

3. Etymology: From ᾍδης

WikipediaRate this definition:0.0 / 0 votes

1. Hadean

   The Hadean ( hay-DEE-ən, HAY-dee-ən) is a geologic eon of Earth history preceding the Archean. On Earth, the Hadean began with the planet's formation about 4.54 billion years ago (although the start of the Hadean is defined as the age of the oldest solid material in the Solar System, found in some meteorites, about 4.567 billion years old). The Hadean ended, as defined by the International Commission on Stratigraphy (ICS), 4 billion years ago.Hadean rocks are very rare, largely consisting of zircons from one locality in Western Australia. Hadean geophysical models remain controversial among geologists: it appears that plate tectonics and the growth of continents may have started in the Hadean. Earth in the early Hadean had a very thick carbon dioxide atmosphere, but eventually oceans of liquid water formed.

ChatGPTRate this definition:0.0 / 0 votes

1. hadean

   The Hadean is the geologic eon that began about 4.6 billion years ago with the formation of the Earth and ended about 4 billion years ago. The name "Hadean" comes from Hades, the ancient Greek god of the underworld, in reference to the conditions on Earth during this time. This period was characterized by the planet's surface being in a molten state and covered by a magma ocean. There is no recorded life from this eon. The Hadean is the earliest division of time in the geological time scale.

WikidataRate this definition:0.0 / 0 votes

1. Hadean

   The Hadean is the first geologic eon of Earth and lies before the Archean. It began with the formation of the Earth about 4600 million years ago and ended as defined by the ICS 4,000 million years ago. The name "Hadean" derives from Hades, the Greek name for the god of the underworld. The name is in reference to the "hellish" conditions on Earth at the time: the planet had just formed and was still very hot due to high volcanism, a partially molten surface and frequent collisions with other Solar System bodies. The geologist Preston Cloud coined the term in 1972, originally to label the period before the earliest-known rocks on Earth. W. Brian Harland later coined an almost synonymous term: the "Priscoan period". Other, older texts simply refer to the eon as the Pre-Archean.

Anagrams for hadean »

1. hadnae

How to pronounce hadean?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say hadean in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of hadean in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of hadean in Pythagorean Numerology is: 6

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=hadean
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Hadean
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Hadean
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=hadean