urobilinogen: a chromogen formed in the intestine from the breakdown of bilirubin; yields urobilins on oxidation; some is excreted in the feces and some is resorbed and excreted in bile or urine
chromogen: a compound that can be converted to a pigment
common juniper: densely branching shrub or small tree having pungent blue berries used to flavor gin; widespread in northern hemisphere; only conifer on coasts of Iceland and Greenland