Dictionary.com

mercapto

[ mer-kap-toh ]
/ mərˈkæp toʊ /

adjective Chemistry.

containing the mercapto group; sulfhydryl; thiol.

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Origin of mercapto

First recorded in 1970–75; mercapt(an) + -o-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for mercapto

mercapto-
/ (mɜːˈkæptəʊ) /

combining form

(in chemical compounds) indicating the presence of an HS- group
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for mercapto

mercapto-

pref.

Containing the univalent radical SH:mercaptopurine.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.