'Benthos' definitions:

Definition of 'benthos'

From: WordNet
noun
A region including the bottom of the sea and the littoral zones [syn: benthos, benthic division, benthonic zone]
noun
Organisms (plants and animals) that live at or near the bottom of a sea

Definition of 'Benthos'

From: GCIDE
  • Benthos \Ben"thos\ (b[e^]n"th[o^]s), n. [NL., fr. Gr. be`nqos depth of the sea.] The bottom of the sea, esp. of the deep oceans; hence (Bot. & Zool.), the fauna and flora of the sea bottom; -- opposed to plankton. [Webster 1913 Suppl.]

Synonyms of 'benthos'

From: Moby Thesaurus