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indole Syllabification: in·dole
Pronunciation: /ˈindōl/

Definition of indole in English:


A crystalline organic compound with an unpleasant odor, present in coal tar and in feces.
  • A heteroaromatic compound with fused benzene and pyrrole rings; chemical formula: C8H7N
Example sentences
  • For instance, the substance indole, which comes from coal tar and animal feces, actually smells like jasmine at its detection threshold.
  • The absorbance band is narrowest for 3-methyl indole in pentane.
  • Members of the family produce latex, diverse iridoids, cardioglycosides, and various alkaloids (notably indole and steroid groups), sometimes cyanogenic, rarely saponiferous.


Mid 19th century: blend of indigo (because obtained artificially from indigo blue) and Latin oleum 'oil'.

Definition of indole in:
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