[ fuh-mil-yuh l, -mil-ee-uh l ]
/ fəˈmɪl yəl, -ˈmɪl i əl /


of, relating to, or characteristic of a family: familial ties.
appearing in individuals by heredity: a familial disease.

Origin of familial

From French, dating back to 1895–1900; see origin at family, -al1

Related forms

in·ter·fa·mil·ial, adjectivenon·fa·mil·ial, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for familial

British Dictionary definitions for familial


/ (fəˈmɪlɪəl) /


of or relating to the family
occurring in the members of a familya familial disease
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for familial


[ fə-mĭlyəl ]


Occurring or tending to occur among family members, usually by heredity.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.