kernicterus: an abnormal accumulation of bile pigment in the brain and other nerve tissue; causes yellow staining and tissue damage
jaundice: 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
conferva: any of various algae of the genus Tribonema; algae with branching filaments that form scum in still or stagnant fresh water