Source : WordNet®

familial
     adj 1: relating to or having the characteristics of a family;
            "children of the same familial background"; "familial
            aggregation"
     2: tending to occur among members of a family usually by
        heredity; "an inherited disease"; "familial traits";
        "genetically transmitted features" [syn: {genetic}, {hereditary},
         {inherited}, {transmitted}, {transmissible}]