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biosphere

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