01 adj. relating to or having the characteristics of a family; as, children of the same familial background; familial aggregation.
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1.
relating to or having the characteristics of a family; as, children of the same familial background; familial aggregation.
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2.
tending to occur among members of a family, usually by hereditary transmission; familial traits.
Syn.
genetic, hereditary, inherited, transmitted, transmissible.