sublittoral
adjective(sub-lit-to-ral)
situated, occurring, or formed on the aquatic side of a shoreline or littoral zone
sublittoral
adjective(sub-lit-to-ral)
constituting the sublittoral
sublittoral
noun(sub-lit-to-ral)
the deeper part of the littoral portion of a body of water; especially : the region in an ocean between the lowest point exposed by a low tide and the margin of the continental shelf