Skip to Content


Pronunciation: mer-kap'tan


  1. A class of substances in which the oxygen of an alcohol has been replaced by sulfur (cysteine).
  2. In dentistry, a class of elastic impression compounds sometimes referred to as rubber base materials.

See: thiol

Synonym(s): thioalcohol

Disclaimer: This site is designed to offer information for general educational purposes only. The health information furnished on this site and the interactive responses are not intended to be professional advice and are not intended to replace personal consultation with a qualified physician, pharmacist, or other healthcare professional. You must always seek the advice of a professional for questions related to a disease, disease symptoms, and appropriate therapeutic treatments.
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.