1. of, relating to, or befitting a son or daughter: filial obedience.
2. noting or having the relation of a child to a parent.
3. 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.
"pieties can be filial."
"imprintings can be filial."
"affections can be filial."
"duties can be filial."
"responsibilities can be filial."
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