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  1. Reverse osmosis - Wikipedia

    Reverse osmosis (RO) is a water purification process that uses a semi-permeable membrane to separate water molecules from other substances. RO applies pressure to overcome osmotic …

  2. Reverse osmosis | Definition, Process, & Uses | Britannica

    Dec 11, 2025 · Reverse osmosis is a separation technique in which pressure applied to a solution forces the solvent through a semipermeable membrane from a region of low concentration to …

  3. What Is Reverse Osmosis? - Science Notes and Projects

    Feb 15, 2022 · Reverse osmosis or RO is a water purification process that presses water through a semi-permeable membrane. Particles, molecules, and ions that are larger than water …

  4. Reverse Osmosis (RO) | Definition, Principle, Process and ...

    Jul 23, 2025 · Reverse osmosis refers to the movement of solvent from a region of high concentration of solute to a region of low concentration of solute or pure solvent through a …

  5. What Is Reverse Osmosis and How Does It Work | Veolia

    What is Reverse Osmosis (RO)? Reverse osmosis (RO) is a high-efficiency water purification method that relies on a semi-permeable membrane to separate and remove impurities from …

  6. What Reverse Osmosis Is and How It Works - ThoughtCo

    Jun 10, 2025 · Reverse osmosis or RO is a filtration method that is used to remove ions and molecules from a solution by applying pressure to the solution on one side of a semipermeable …

  7. REVERSE OSMOSIS Definition & Meaning - Merriam-Webster

    Oct 21, 2025 · The meaning of REVERSE OSMOSIS is the movement of fresh water through a semipermeable membrane when pressure is applied to a solution (such as seawater) on one …

  8. What is Reverse Osmosis? - BYJU'S

    Reverse osmosis ( RO) is a water purification process that removes ions, unwanted molecules and larger particles from drinking water using a partially permeable membrane.

  9. Reverse Osmosis (R/O): How It Works - University of Nevada, Reno

    Osmosis is the natural tendency of two fluids, separated by a membrane, to equalize salt concentrations. This is the mechanism that plants use to extract water from surrounding soils. …

  10. What Is Reverse Osmosis? Beginner’s Guide to Clean Drinking …

    Aug 12, 2025 · Reverse osmosis (RO) is a powerful water-purification process where water is forced through a semi-permeable membrane, leaving contaminants behind. It’s popular for …