 ##  [Adsorption](/adsorption) 

  ##  [Adsorption](https://engineering.quantumdictionary.io/adsorption-0) 

  
 [![Engineering & Applied Technologies Dictionary](/sites/default/files/styles/large/public/2026-01/Engineering%20%26%20Applied%20Technologies.png.webp?itok=_IKO7_-n)](/topic-specific-dictionaries/engineering-applied-technologies)


**Engineering &amp; Applied Technologies Dictionary**

 
Definition

The accumulation of atoms, molecules or ions from a fluid phase onto the surface of a solid or liquid interface by physical (van der Waals, physisorption) or chemical (chemisorption, covalent/ionic bond formation) interactions, producing a surface concentration distinct from the bulk.