(a.) Of or pertaining to the sea; -- sometimes applied to rocks formed from sediments deposited upon the sea bottom.

Bassalian abyssal aquatic balneal bathyal bathybic bathymetric bathyorographical bathypelagic bathysmal benthal benthonic benthopelagic blue-water deep-water estuarine grallatorial hydrographic littoral marine maritime natant natatorial natatory nautical oceanic oceanographic pelagic seashore shore swimming terriginous thalassic tidal water-dwelling water-growing water-living water-loving