Dictionary

thiol

thiol

noun thi·ol \ˈthī-ˌl, -ˌōl\

Definition of THIOL

1
:  any of various compounds having the general formula RSH which are analogous to alcohols but in which sulfur replaces the oxygen of the hydroxyl group and which have disagreeable odors
2
:  the functional group −SH characteristic of thiols
thi·o·lic \thī-ˈ-lik\ adjective

Origin of THIOL

International Scientific Vocabulary thi- + 1-ol
First Known Use: circa 1890

thiol

noun thi·ol \ˈthī-ˌl, -ˌōl\   (Medical Dictionary)

Medical Definition of THIOL

1
:  any of a class of compounds that are analogous to alcohols and phenols but contain sulfur in place of oxygen with the general formula RSH and in the case of those of low molecular weight have very disagreeable odors—called also mercaptan
2
:  the functional group −SH characteristic of thiols
thi·o·lic \thī-ˈō-lik\ adjective

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