biosphere

play
noun bio·sphere \ ˈbī-ə-ˌsfir \

Definition of biosphere

1 :the part of the world in which life can exist
2 :living organisms together with their environment

biospheric

play \ˌbī-ə-ˈsfir-ik, -ˈsfer-, -ˈsfe-rik\ adjective

Recent Examples of biosphere from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'biosphere.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Did You Know?

The lithosphere is the solid surface of the earth (lith- meaning "rock"); the hydrosphere is the earth's water (hydro- means "water"), including the clouds and water vapor in the air; and the atmosphere is the earth's air (atmos- meaning "vapor"). The term biosphere can include all of these, along with the 10 million species of living things they contain. The biosphere recycles its air, water, organisms, and minerals constantly to maintain an amazingly balanced state; human beings should probably do their best to imitate it. Though the word has a new sound to it, it was first used over a hundred years ago.

First Known Use of biosphere

1899


BIOSPHERE Defined for English Language Learners

biosphere

play
noun

Definition of biosphere for English Language Learners

  • : the part of the Earth in which life can exist


Medical Dictionary

biosphere

play
noun bio·sphere \ ˈbī-ə-ˌsfi(ə)r \

medical Definition of biosphere

1 :the part of the world in which life can exist
2 :living beings together with their environment


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