The Collaborative International Dictionary of English v.0.48:
Icterus \Ic"te*rus\, n. [NL. See Icteric, a.] (Med.) The jaundice. [1913 Webster]WordNet (r) 3.0 (2006):
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, icterus] 2: type genus of the Icteridae [syn: Icterus, genus Icterus]