l]
| 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. |
filial fil·i·al (fĭl'ē-əl)
adj.
Relating to the relationship of offspring to parents.
In genetics, relating to a generation or the sequence of generations following the parental generation.