follow Dictionary.com

Today's Word of the Day means...

biosphere

[bahy-uh-sfeer] /ˈbaɪ əˌsfɪər/
noun
1.
the part of the earth's crust, waters, and atmosphere that supports life.
2.
the ecosystem comprising the entire earth and the living organisms that inhabit it.
Origin
1895-1900
1895-1900; < German Biosphäre; see bio-, -sphere
Related forms
biospheric
[bahy-uh-sfer-ik] /ˌbaɪ əˈsfɛr ɪk/ (Show IPA),
adjective
Can be confused
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for bio-sphere

biosphere

/ˈbaɪəˌsfɪə/
noun
1.
the part of the earth's surface and atmosphere inhabited by living things
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for bio-sphere
biosphere
1899, on model of Ger. Biosphäre (1875), coined by Ger. geologist Eduard Suess (18311914), from bio- + sphere.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
bio-sphere in Medicine

biosphere bi·o·sphere (bī'ə-sfēr')
n.

  1. All the regions of the earth and its atmosphere in which living organisms are found or can live.

  2. The living organisms and their environment composing the biosphere.


bi'o·spher'ic (-sfēr'ĭk, -sfěr'-) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
bio-sphere in Science
biosphere
  (bī'ə-sfîr')   
  1. The parts of the land, sea, and atmosphere in which organisms are able to live. The biosphere is an irregularly shaped, relatively thin zone in which life is concentrated on or near the Earth's surface and throughout its waters.

  2. All the Earth's ecosystems considered as a single, self-sustaining unit.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
bio-sphere in Culture
biosphere [(beye-uh-sfeer)]

The thin outer shell of the Earth and the inner layers of its atmosphere; the place where all living systems are found.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source

Word of The Day

Difficulty index for biosphere

Some English speakers likely know this word

Word Value for bio

5
6
Scrabble Words With Friends

Quotes with bio-sphere