Definition of thiol in US English:



  • An organic compound containing the group —SH, i.e. a sulfur-containing analog of an alcohol.

    • ‘Chemically, thiols occur readily in petroleum processes such as distillation.’
    • ‘It is not yet known why we are so sensitive to thiols compared to their alcohol equivalents.’
    • ‘Reduction of hexavalent chromium seems to be driven by ascorbate and low molecular weight thiols, whereas the major DNA adducts formed are ternary complexes of chromium and amino acids and glutathione.’
    • ‘The samples were subject to two cycles of freezing/thawing and low molecular weight thiols were recovered in the supernatants after centrifugation at 12 000 g, 10 min at room temperature.’
    • ‘The majority of the essential element, sulphur, in living organisms is in the reduced form of organic thiols, such as the amino acids cysteine and methionine.’