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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 A class of substances in which the oxygen of an alcohol has been replaced by sulfur (cysteine).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

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.