biospheres

Noun

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

Synonyms

Scrabble Score: 17

biospheres: valid Scrabble (US) TWL Word
biospheres: valid Scrabble Word in Merriam-Webster MW Dictionary
biospheres: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 18

biospheres: valid Words With Friends Word