Read Edit View history 太古代 tàigǔdài Archean Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 太古代 tàigǔdài Archean The Archean eon of geological time, occurring before 2.5 billion years ago. Edit Delete References Add reference No references for this word.
太古代 tàigǔdài Archean The Archean eon of geological time, occurring before 2.5 billion years ago. Edit Delete