BIOSPHERES

Scrabble 17 Words With Friends 18

Scrabble letter values: B₃I₁O₁S₁P₃H₄E₁R₁E₁S₁ = 17

Definition

BIOSPHERES is the plural of BIOSPHERE.

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