Synonyms
(near_synonym)
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00812952-a:
at or near the beginning of a period of time or course of events or before the usual or expected time
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Related
(related_to)
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15129220-n:
the time from 3,800 million years to 2,500 million years ago; earth's crust formed; unicellular organisms are earliest forms of life
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Domain
(category)
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06115701-n:
a science that deals with the history of the earth as recorded in rocks
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Glosses
(gloss)
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05867413-n:
one of the portions into which something is regarded as divided and which together constitute a whole
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Glosses
(gloss)
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15128711-n:
the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago
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Glosses
(gloss)
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15248020-n:
a major division of geological time; an era is usually divided into two or more periods
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