Definition from Wiktionary, the free dictionary
See also índole
indole (plural indoles)
- (chemistry) An organic compound, C8H7N, found in coal tar, and produced in the gut by the bacterial decomposition of tryptophan; it is an aromatic bicyclic heterocycle having a benzene ring fused with a pyrrole ring; indole and its derivatives occur widely in nature and have many industrial applications.
- (chemistry) Any of the derivatives of indole1.
Derived terms 
indole f (plural indoli)
- ablative singular of indoles