[ fil-ee-uh l ]
/ ˈfɪl i əl /


of, relating to, or befitting a son or daughter: filial obedience.
noting or having the relation of a child to a parent.
Genetics. pertaining to the sequence of generations following the parental generation, each generation being designated by an F followed by a subscript number indicating its place in the sequence.

Origin of filial

1350–1400; Middle English < Late Latin fīliālis, equivalent to Latin fīli(us) son + -ālis -al1


fil·i·al·ly, adverbfil·i·al·ness, nounnon·fil·i·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for filial

British Dictionary definitions for filial

/ (ˈfɪljəl) /


of, resembling, or suitable to a son or daughterfilial affection
genetics designating any of the generations following the parental generation; F 1 indicates the first filial generation, F 2 the second, etcAbbreviation: F

Derived forms of filial

filially, adverbfilialness, noun

Word Origin for filial

C15: from Late Latin fīliālis, from Latin fīlius son
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

Medical definitions for filial

[ fĭlē-əl ]


Relating to the relationship of offspring to parents.
In genetics, relating to a generation or the sequence of generations following the parental generation.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.