Osmosis is the movement of solvent through a:
Semipermeable membrane
Osmosis is one of the most important processes in nature and a naturally occurring phenomenon. It is the movement of water molecules from higher water concentration to the area of lower water concentration through a semipermeable membrane. In other words, it can be defined as the diffusion of water molecules through a semipermeable membrane. For example, plant roots use osmosis for absorbing water from the soil.