familiality

From familial +‎ -ity.

familiality (uncountable)

1. The quality of being familial.
   • 2007 December 22, Heino F. L. Meyer-Bahlburg, Curtis Dolezal, Susan W. Baker, Maria I. New, “Sexual Orientation in Women with Classical or Non-classical Congenital Adrenal Hyperplasia as a Function of Degree of Prenatal”, in Archives of Sexual Behavior, volume 37, number 1, →DOI:

     The demonstration of familiality and heritability of homosexuality (e.g., Pillard & Bailey, 1998 ) has led to numerous attempts to provide genetic explanations.