the planetary ecosystem, consisting of all living organisms and their environment
WordReference Random House Unabridged Dictionary of American English © 2025
ec•o•sphere
(ek′ō sfēr′, ē′kō-),USA pronunciation n.
- Also called physiological atmosphere. the part of the atmosphere in which it is possible to breathe normally without aid: the portion of the troposphere from sea level to an altitude of about 13,000 ft. (4000 m).
- Ecologythe planetary ecosystem, including all the earth's living organisms and their physical environment;
biosphere.
- eco- + sphere 1950–55
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'ecosphere' also found in these entries (note: many are not synonyms or translations):