Part of speech: Noun
a region including the bottom of the sea and the littoral zones
Categories: Biogeographical region
Part of speech: Noun
organisms (plants and animals) that live at or near the bottom of a sea
Categories: Organism, Being
Benthonic zone, Benthic division, Benthos
The word "benthos" comes from Ancient Greek βένθος.
Ancient Greek had multiple words for concepts English expresses with just one, showing different cultural priorities.