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Definition of Thiol
1. Noun. (organic chemistry) a univalent organic radical (-SH) containing a sulphur and a hydrogen atom; a compound containing such a radical ¹
¹ Source: wiktionary.com
Definition of Thiol
1. a sulfur compound [n -S] : THIOLIC [adj]
Medical Definition of Thiol
1. 1. The monovalent radical -SH when attached to carbon; a hydrosulfide; a mercaptan. 2. A mixture of sulfurated and sulfonated petroleum oils purified with ammonia; used in the treatment of skin diseases. (05 Mar 2000)