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隐生宙
yǐn​shēng​zhòu

cryptozoic

Definitions Defs Origin Strokes Stroke Words Sentences Sents
隐生宙 (隱生宙) yǐn​shēng​zhòu
cryptozoic adjective
The geological eon before the appearance of abundant fossils, characterized by "hidden life," preceding the Phanerozoic eon.

Frequency

Written text
0.002 per million

Sources

Definitions
CC-CEDICT
Frequency data
BCC Corpus (BLCU)