Dictionary
ben•thos
Pronunciation: (ben'thos), [key]—
n.
the biogeographic region that includes the bottom of a lake, sea, or ocean, and the littoral and supralittoral zones of the shore. Also called
ben'thic divi"sion, benthon'ic zone". Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.