Adsorption (noun)

1. The process by which a substance collects on the surface of a solid or liquid.
2. The adhesion of molecules of gas, liquid, or dissolved solids to a surface.

Origin:

From the latin ad + sorbere meaning "to suck up".

Examples:

1. Adsorption is used in water treatment to remove impurities.
2. The gas was adsorbed onto the charcoal filter.
3. Adsorption is a process that occurs when the surface of a solid material attracts and holds molecules.
4. The adsorption of the dye onto the fabric was studied in the lab.
5. Adsorption process is used in several industrial applications such as purification of water and air.