Cryptozoic
/ˌkrɪptəʊˈzəʊɪk/adjective
- Geology of, relating to, or denoting the period (the Precambrian) in which rocks contain no, or only slight, traces of living organisms【地质】（与）前寒武纪（有关）的。比较PHANEROZOIC.
词源
early 20th cent.: from Greek kruptos 'hidden' + zōē 'life' + -IC.