Source : Webster's Revised Unabridged Dictionary (1913)

Parental \Pa*ren"tal\, a. [L. parentalis.]
   1. Of or pertaining to a parent or to parents; as, parental
      authority; parental obligations.

   2. Becoming to, or characteristic of, parents; tender;
      affectionate; devoted; as, parental care.

            The careful course and parental provision of nature.
                                                  --Sir T.
                                                  Browne.

Source : WordNet®

parental
     adj 1: designating the generation of organisms from which hybrid
            offspring are produced [ant: {filial}]
     2: relating to or characteristic of or befitting a parent;
        "parental guidance" [syn: {maternal}, {paternal}] [ant: {filial}]