Synset:Hadean Hadean aeon Hadean eon Hadean time Priscoan Priscoan aeon Priscoan eon
Instance Hypernyms:aeon eon
Inherited Hypernyms:hadeaneongeological timetimeattributeabstractionentity
单词 | hadean aeon |
释义 | Hadean Aeon nnoun.timethe 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 Synset:Hadean Hadean aeon Hadean eon Hadean time Priscoan Priscoan aeon Priscoan eon Instance Hypernyms:aeon eon Inherited Hypernyms:hadeaneongeological timetimeattributeabstractionentity |
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