BENTHOS /ˈbɛnθɒs/ Scrabble 12 Words With Friends 13 Definition noun a region including the bottom of the sea and the littoral zones. — synonyms: benthic_division, benthonic_zone noun organisms (plants and animals) that live at or near the bottom of a sea. See all 127 words you can make from BENTHOS → 7-letter words Words starting with B Words ending with S ← Unscramble different letters