family relationship, kinship, relationship - state of relatedness or connection by blood or marriage or adoption

bilateral descent - line of descent traced through both the maternal and paternal sides of the family

unilateral descent - line of descent traced through one side of the family

hereditary pattern, inheritance - (genetics) attributes acquired via biological heredity from the parents

breed, strain - a lineage or race of people

descent, extraction, origin - properties attributable to your ancestry; "he comes from good origins"

bloodline, pedigree - ancestry of a purebred animal