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1. Dictionary

   biosphere

   /ˈbʌɪəsfɪə/

   noun

   • 1. the regions of the surface and atmosphere of the earth or another planet occupied by living organisms.
   • 2. an artificial structure enclosing a self-contained ecosystem or ecosystems: "the elliptical domed biosphere is the largest single-span glasshouse in the world"

   Word Origin late 19th century: coined in German from Greek bios ‘life’ + sphaira (see sphere).

   Derivatives

   • 1. biospheric adjective

   Scrabble Points: 16

   • B

     3

   • I

     1

   • O

     1

   • S

     1

   • P

     3

   • H

     4

   • E

     1

   • R

     1

   • E

     1

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