Definition of desorb in English:


transitive verb

[with object]
  • 1Chemistry
    Cause the release of (an adsorbed substance) from a surface.

    ‘these “active points” desorb the resultant alkane’
    • ‘The electrochemical data suggest that the bilayer is desorbed from the electrode surface at this potential.’
    • ‘This was followed by plasma desorption in the 1970s, which uses high energy ions to desorb and ionise molecules.’
    • ‘As the ion beam hits a small patch of the sample surface, it desorbs and ionizes the atoms in its path.’
    • ‘When calcium is desorbed from the cell wall, it becomes looser and the pore sizes in it increases.’
    • ‘Mercury is thermally desorbed from solid samples, trapped on an in-line gold trap, and subsequently determined by cold-vapour atomic absorption spectrometry.’
    1. 1.1no object (of an adsorbed substance) become released.
      ‘the free radicals desorbed back into the chamber’
      • ‘In the case of the early lengthening steps, the value of L p is low, suggesting that perhaps half of the structure either unfolds or desorbs to a random coil configuration with little hindered movement.’
      • ‘Ribosomes that reach the termination site desorb and re-enter the pool of diffusing ribosomes.’
      • ‘Aggregation of the cells occurs at the highest C, here most likely because poly-L-lysine desorbs from the saturated glass and begins to cross-link the red cells.’
      • ‘We found again that on average 1% of the lipid had desorbed per hour.’
      • ‘From the DMPG- and Ca 2 + doped systems data, we speculate that the time dependence of the Ca 2 + doped ULV size may be related to the fact that the bilayer charge density varies with time as Ca 2 + ions desorb.’



/dēˈzôrb/ /diˈzɔrb/ /dēˈsôrb/ /diˈsɔrb/


1920s back-formation from desorption (from de- ‘away’ + adsorption).