前寒武紀

Chinese
 
front, forepart; in front; past
front, forepart; in front; past; former; previous; last; before; preceding; earlier; ago; future; time ahead; first; top; battlefront; to move forward
trad. (前寒武紀) 前 寒武紀
simp. (前寒武纪) 前 寒武纪

Pronunciation

Proper noun

前寒武紀

  1. (geology) the Precambrian supereon (spanning from the formation of the Earth around 4.6 billion years ago to the emergence of hard-shelled creatures 541 million years ago)
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