海水脱盐 hǎishuǐtuōyán seawater desalination Origin Definitions Defs Strokes Stroke Words Sentences Sents 海水 hǎishuǐ noun seawater seawater; brine; the sea脱盐 脫鹽 tuōyán to desalinate To remove or reduce the salt content from a substance such as soil, seawater, or crude oil; also used specifically for treating alkaline soil to make it suitable for planting.