Also found in: Medical, Encyclopedia, Wikipedia.


 (thī′ôl′, -ōl′, -ŏl′)
A sulfur-containing organic compound with the general formula RSH where R is any hydrocarbon group. Also called mercaptan.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Elements & Compounds) any of a class of sulphur-containing organic compounds with the formula RSH, where R is an organic group. Also called (not in technical usage): mercaptan
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(mərˈkæp tæn)

any of a class of odiferous sulfur-containing compounds having the type formula RSH, where R represents a radical.
Also called thiol.
[< German (1834), shortening of Latin phrase corpus mercurium captāns body capturing quicksilver]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
The levels of total thiol, non-protein thiol, and protein thiol were found significantly decreased in the spinal cord of 24-26-month-old rats relative to 3-4-month-old rats (7).
Blood samples were drawn from each patient to study a complete blood count, liver and renal function tests, electrolytes, and thiol/disulfide homeostasis parameters (thiol, disulfide, native thiol, disulfide/native thiol, disulfide/total thiol, native thiol/total thiol) levels.
Pedmark is a water-soluble thiol compound that has the potential to prevent chemotherapy-induced hearing loss.
KEYWORDS: [beta]-thalassemia major, Disulfide, Ferritin, Oxidative stress, Thiol.
Objective: To investigate novel oxidative stress marker thiol disulphide homeostasis in patients with acute myocardial infarction.
Intracellular antioxidants are classified into two major groups as enzymatic (superoxide dismutase, catalase, glutathione peroxidase, thioredoxin, peroxiredoxin, and glutathion transferase) and non-enzymatic (lipoic acid, coenzim Q, vitamins C and E, thiol, glutathione, and ferritin, transferin, ceruloplasmin and albumin as proteins) types (6-7).
Next, 1.5 mL of the blood sample was anticoagulated with EDTA for the preparation of erythrocyte hemolysate in order to determine the effects of DZN on the activities of antioxidant enzymes and 3.5 mL of the blood sample was transferred into plane tubes and centrifuged for 10 minutes at 1800Xg for serum separation in order to measure malondialdehyde (MDA), total thiol molecules, and total antioxidant capacity (TAC) as biomarkers of oxidative stress in blood serum.
Native thiol, total thiol, disulphide levels and disulphide/native thiol, disulphide/total thiol, and native thiol/total thiol ratios were compared between the patient and control group's sera.
One of the defense mechanism against OS in humans is the thiol redox reaction.
The aim of this prospective study was to evaluate the role of oxidative stress, using native thiol thiol/disulfide (SH/SS) homeostasis as a novel indicator, in the etiology of BPPV.