To collect molecules of a substance on a surface.

1882, transitive (intransitive use attested from 1919), back-formation from adsorption "condensation of gases on the surfaces of solids" (1882), coined in German from ad- + -sorption, abstra [..]

See

[verb] To adhere in an extremely thin layer of molecules (as of gases, solutes, or liquids) to the surfaces of solid bodies or liquids with which a substance is in contact.

(v) accumulate (liquids or gases) on the surface

The accumulation of one material on the surface of another material through physical bonds

to form a thin layer of molecules of a substance on the surface of a solid or liquid.

Attachment of a substance to the surface of another material by physical bonds.  

Where molecules of a gas or liquid or solute form a thin film on the outside surface of a material.

In flue gas treatment processes, this capture is an acid-base chemical neutralization, producing salts such as CaCl2, CaSO4 or CaF2

<chemistry> Refers to the process of one material attracting and holding molecules of another substance to the surface of its molecules. (06 May 1997)

To gather gas on a surface.