Pronunciation: (pu-ren'tl), [key]
1. of or pertaining to a parent.
2. proper to or characteristic of a parent: parental feelings.
3. having the relation of a parent.
4. Genetics.pertaining to the sequence of generations preceding the filial generation, each generation being designated by a P followed by a subscript number indicating its place in the sequence.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.