noun Chemistry.

  1. a crystalline compound, C8H7NO, that is obtained by the hydrolysis of indican and is readily oxidized to furnish indigo.


  1. a yellow water-soluble crystalline compound occurring in woad as its glucoside and in urine as its ester. Formula: C 8 H 7 NOSee also indican


  1. A product of intestinal bacterial degradation of indoleacetic acid, excreted in the urine.
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