Definition of adsorb in English:

Share this entry


Pronunciation: /ədˈzɔːb/
Pronunciation: /ədˈsɔːb/


[with object]
(Of a solid) hold (molecules of a gas or liquid or solute) as a thin film on the outside surface or on internal surfaces within the material: the dye is adsorbed on to the fibre
More example sentences
  • These species may be metal ions, surface defects, or adsorbed molecules or ions with one or more unpaired electrons.
  • During this time the dissolved protein molecules are spontaneously adsorbed on the quartz surface.
  • This procedure leaves for measurements only these molecules that are strongly adsorbed to the glass surface.



Example sentences
  • As a result, our discharges of adsorbable organic halides have decreased more than 90 percent since 1990.
  • Similar cost curves were generated for the removal of adsorbable organic compounds and dissolved inorganic species.
  • A continuously operating analytical monitoring system using plasma emission detection for the measurement of adsorbable organic halogens in industrial waste water was developed.


Pronunciation: /ədˈzɔːpʃ(ə)n/
Pronunciation: /ədˈsɔːpʃ(ə)n/
Example sentences
  • In addition, the surface atoms are capable of both adsorption and absorption of chemical compounds.
  • A distinction can also be made between monolayer adsorption and multilayer adsorption.
  • Acidic lipids enhance the adsorption of positive ions due to their negative charge.


Example sentences
  • Soils high in organic matter or clay are more adsorptive than coarse sandy soils.
  • The institution is performing general membrane research and has recently started working on ceramic membranes and chitosan-based adsorptive membrane systems.
  • The use of adsorptive agents decreases the amount of the toxic agent available for absorption by the gastric mucosa.


Late 19th century: blend of ad- (expressing adherence) + absorb.

For editors and proofreaders

Line breaks: ad¦sorb

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.