biosphere
//ˈbaɪ.oʊˌsfɪr//
Noun
biosphereSingular
biospheresPlural
1
The regions of the Earth's surface, atmosphere, and hydrosphere occupied by living organisms.
The biosphere includes all living things on Earth, from the deepest oceans to the highest mountains.
2
The global ecological system integrating all living beings and their relationships with the environment.
The biosphere includes all ecosystems on Earth, from the deepest oceans to the highest mountains.