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Pronunciation: in'dol


  1. basis of many biologically active substances (serotonin, tryptophan); formed in degradation of tryptophan.
  2. Any of many alkaloids containing the indole (1) structure.

Synonym(s): ketole

Further information

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