(a.) of or pertaining to the deeper parts of the sea; as, a deep-sea line (i. e., a line to take soundings at a great depth); deep-sea lead; deep-sea soundings, explorations, etc.

aqueous balneal deep-sea estuarine grallatorial hydrated hydraulic hydrous liquid littoral natant natatorial natatory plashy seashore shore sloppy splashy swashy swimming tidal water-dwelling water-growing water-living water-loving waterish watery