'Urobilin' definitions:

Definition of 'urobilin'

(from WordNet)
noun
Brown bile pigment formed from urobilinogens and found in feces and in small amounts in urine

Definition of 'Urobilin'

From: GCIDE
  • Urobilin \U`ro*bi"lin\, n. [1st uro- + bile + -in.] (Physiol. Chem.) A yellow pigment identical with hydrobilirubin, abundant in the highly colored urine of fever, and also present in normal urine. See Urochrome. [1913 Webster]