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kernicterus

[kûr-nĭk′tər-əs]
n.
  1. A grave form of jaundice of the newborn characterized by very high levels of unconjugated bilirubin in the blood and by yellow staining and degenerative lesions in the cerebral gray matter.nuclear jaundice
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.