biosphere
/ˈbaɪəsfɪə(r)/noun
1
- the regions of the surface and atmosphere of the earth or another planet occupied by living organisms生物圈。
2
- an artificial structure enclosing a self-contained ecosystem or ecosystems人造生物圈。
派生词
biospheric
adjective词源
late 19th cent.: coined in German from Greek bios 'life' + sphaira （see SPHERE）.