pedigree By Ivan Suarez Robles 08 Feb, 2011 A family lineage, or a chart of a family lineage that follows the inheritance of a particular trait.Related Articles: Maladies of My Mind - Ch. 4 Invisible GirlThe HOPES Huntington's Disease Timeline (Text)Studying Huntington's DiseaseHuntington’s Disease-Like 2 (HDL2)