Solute Posted: Monday, September 14th, 2015 in « Back to Glossary IndexMatter dissolved in a liquid, such as water. Related Articles: Glossary: Molecular weight cutoff (MWCO)Glossary: Parts per millionReverse Osmosis Technology – Not Just for Water PurificationPretreatment Technologies for Reverse Osmosis and Nanofiltration« Back to Glossary Index About UsWater Conditioning & Purification Writers By Issue