Definition of biospheres

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  • biospheres is a valid Scrabble US word with a point value of 17
  • biospheres is a valid Scrabble UK word with a point value of 17
  • biospheres is a valid Words with friends word with a point value of 18

Definition of biospheres

  • the regions of the surface and atmosphere of the Earth (or other planet) where living organisms exist (noun)

See definition of biospheres in Merriam Webster