biosphere
noun /ˈbaɪəʊsfɪə(r)/
/ˈbaɪəʊsfɪr/
[singular] (specialist)- the part of the earth’s surface and atmosphere in which plants and animals can live
Topics Spacec2生物圈 词源late 19th cent.: coined in German from Greek bios ‘life’ + sphaira ‘ball’.