Source : Webster's Revised Unabridged Dictionary (1913)

Icterus \Ic"te*rus\, n. [NL. See {Icteric}, a.] (Med.)
   The jaundice.

Source : WordNet®

icterus
     n 1: yellowing of the skin and the whites of the eyes caused by
          an accumulation of bile pigment (bilirubin) in the
          blood; can be a symptom of gallstones or liver infection
          or anemia [syn: {jaundice}]
     2: type genus of the Icteridae [syn: {genus Icterus}]