What does "benthos" mean?

The flora and fauna at the bottom of a body of water.

What is a synonym for "benthos"?

Common synonyms include: abyss, abyssal zone, alevin, bassalia, bathyal zone, benthic community.

/ˈbɛnθɒs/ noun

noun ·Rare ·Advanced level

Noun

1
The flora and fauna at the bottom of a body of water.
2
organisms (plants and animals) that live at or near the bottom of a sea, lake, river or stream wordnet
3
a region including the bottom of the sea and the littoral zones wordnet

From Ancient Greek βένθος (bénthos, “the depths”).