— filially , adv. — filialness , n.
/fil"ee euhl/ , adj.
1. of, pertaining 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.
[ 1350-1400; ME filialis, equiv. to L fili ( us ) son + -alis -AL 1 ]