"familial" in the adjective sense
1. familial
relating to or having the characteristics of a family
"children of the same familial background"
"familial aggregation"
2. familial, genetic, hereditary, inherited, transmitted, transmissible
occurring among members of a family usually by heredity
"an inherited disease"
"familial traits"
"genetically transmitted features"
Source: WordNet® (An amazing lexical database of English)
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