Familial

Definition: 
A condition that tends to occur more often in family members by direct lineage, such as through parents or grand parents. Some familial diseases are known to skip a generation, but more often, are passed directly from parent to child. Familial diseases, more often than not, are expected to occur in more prevalence in one family than by chance alone. A familial disease may be genetic, such as cystic fibrosis, but can also be induced by environment.
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