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[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
1895-1900; < French; see family, -al1
Related forms
interfamilial, adjective
nonfamilial, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for familial
  • familial tremor is an involuntary shaking movement that tends to run in families.
  • Previous studies also had not looked at differences between various familial connections, he says.
  • She belongs to a family carrying the gene for fatal familial insomnia.
  • But there appears to be a familial link in the vast majority of my acquaintances.
  • These are offered, not as heavy-handed lessons, but rather as prompts for familial discussion.
  • Many questions about fatal familial insomnia remain.
  • The opportunities that academic success offers are generally individual, rather than familial.
  • Parents tend to be more protective of their daughters than their sons because the familial costs of pregnancy are higher.
  • Find out the familial structure of organized crime.
  • He hopes to identify the gene for familial synesthesia in order to learn more, he says.
British Dictionary definitions for familial


of or relating to the family
occurring in the members of a family: a 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
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Word Origin and History for familial

from French familial, from Latin familia (see family). Meaning "hereditary" is from 1900; "family-like" is from 1903.

Online Etymology Dictionary, © 2010 Douglas Harper
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familial in Medicine

familial fa·mil·ial (fə-mĭl'yəl)
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.
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