thiol
noun
thi·ol ˈthī-ˌȯl 
-ˌōl
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
thiolic
thī-ˈȯ-lik
adjective 
Example Sentences
Recent Examples on the Web The skunk bath recipe works by oxidizing the thiols into compounds called disulfides, which are not so smelly. 
Janine M. Kahn, Good Housekeeping, 10 July 2017
Janine M. Kahn, Good Housekeeping, 10 July 2017 Word History
Etymology
International Scientific Vocabulary thi- + -ol entry 1
First Known Use
circa 1890, in the meaning defined at sense 1
Medical Definition
thiol
noun
thi·ol ˈthī-ˌȯl -ˌōl
-ˌōl 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