| Deep-sea (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. Thesaurus Entries 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 |