Wordnet 3.0
ADJECTIVE (1)
1.
of or relating to or happening on the bottom under a body of water;
[syn: benthic, benthal, benthonic]
WordNet (r) 3.0 (2006):
benthonic
adj 1: of or relating to or happening on the bottom under a body
of water [syn: benthic, benthal, benthonic]