English dictionary
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English adjective: archean | |||
| 1. | archean of or relating to the earliest known rocks formed during the Precambrian Eon | ||
| Synonyms | archaean | ||
| Similar | early | ||
| Domain category | geology | ||
| Antonyms | late, middle | ||
English noun: Archean | |||
| 1. | Archean (time) the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life | ||
| Synonyms | Archaeozoic, Archaeozoic aeon, Archean aeon, Archean eon, Archeozoic, Archeozoic eon | ||
| Instance hypernym | aeon, eon | ||
| Part meronym | Precambrian, Precambrian aeon, Precambrian eon, Precambrian period | ||
Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
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Web design: Orcapia v/Per Bang. English edition: .
2025 onlineordbog.dk