DICT.TW Dictionary Taiwan
3.135.187.231
Search for:
▼[Show options]
[Pronunciation] [Help] [Database Info] [Server Info]

1 definition found

From: WordNet (r) 2.0

 Proterozoic aeon
      n : from 2,500 to 544 million years ago; bacteria and fungi;
          primitive multicellular organisms [syn: Proterozoic, Proterozoic
           eon]