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WordReference Random House Learner's Dictionary of American English © 2024bi•o•sphere /ˈbaɪəˌsfɪr/USA pronunciation n. [countable]- Ecology the part of the earth's crust, waters, and atmosphere that supports life:[usually: singular* the + ~]harming the biosphere with chemicals.
- Ecologythe biological system containing the entire earth and its living organisms:When there is an imbalance in one part of the biosphere, it affects all the other parts as well.
See -sphere-. WordReference Random House Unabridged Dictionary of American English © 2024bi•o•sphere (bī′ə sfēr′),USA pronunciation n. - Ecologythe part of the earth's crust, waters, and atmosphere that supports life.
- Ecologythe ecosystem comprising the entire earth and the living organisms that inhabit it.
- German Biosphäre; see bio-, -sphere
- 1895–1900;
Collins Concise English Dictionary © HarperCollins Publishers:: biosphere /ˈbaɪəˌsfɪə/ n - the part of the earth's surface and atmosphere inhabited by living things
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