| Hydrous 1. (a.) Containing water; watery. 2. (a.) Containing water of hydration or crystallization. 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 |