| 单词 | proterozoic |
| 释义 | Proterozoic nnoun.timefrom 2,500 to 544 million years ago; bacteria and fungi; primitive multicellular organisms Synset:Proterozoic Proterozoic aeon Proterozoic eon Derivationally Related Form:proterozoic Part Holonyms:Precambrian Precambrian aeon Precambrian eon Precambrian period Instance Hypernyms:aeon eon Inherited Hypernyms:proterozoiceongeological timetimeattributeabstractionentity adj satadj.allformed in the later of two divisions of the Precambrian era Topic:geology Examples:
Antonyms:latemiddle Derivationally Related Form:Proterozoic Inherited Hypernyms:proterozoic Similar to:early |
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