Agnotozoic

noun or adjective

Ag·​no·​to·​zo·​ic

ag-¦nō-tə-¦zō-ik,

¦ag-ˌnō-

: algonkian , proterozoic

Word History

Etymology

International Scientific Vocabulary agnoto- (from Greek agnōtos unknown) + -zoic

First Known Use

1887, in the meaning defined above

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