verb (used with object) Physical Chemistry.
- to gather (a gas, liquid, or dissolved substance) on a surface in a condensed layer: Charcoal will adsorb gases.
- capable of adsorption
- a material, such as activated charcoal, on which adsorption can occur
- to undergo or cause to undergo a process in which a substance, usually a gas, accumulates on the surface of a solid forming a thin film, often only one molecule thickto adsorb hydrogen on nickel; oxygen adsorbs on tungsten Compare absorb (def. 8)
1882, transitive (intransitive use attested from 1919), back-formation from adsorption (1882), coined in German from ad- + -sorption, abstracted from absorption. See absorb. Related: Adsorbent; adsorption.
- Capable of adsorption.
- An adsorptive substance.
- A pharmacological substance capable of attaching other substances to its surface without any chemical action.
- An antigen or antibody used in immune adsorption.
- To take up by adsorption.