definition of
[familial]

[1] #1 familial a. relating to or having the characteristics of a family; "children of the same familial background"; "familial aggregation". wn

[2] #2 familial s. [genetic, hereditary, inherited, transmitted, transmissible] occurring among members of a family usually by heredity; "an inherited disease"; "familial traits"; "genetically transmitted features". wn