adsorption

ad·sorp·tion

noun \ad-ˈsȯrp-shən, -ˈzȯrp-\

Definition of ADSORPTION

: the adhesion in an extremely thin layer of molecules (as of gases, solutes, or liquids) to the surfaces of solid bodies or liquids with which they are in contact—compare absorption

—ad·sorp·tive \-ˈsȯrp-tiv, -ˈzȯrp-\ adjective