Source : Webster's Revised Unabridged Dictionary (1913)

Pedigree \Ped"i*gree\, n. [Of unknown origin; possibly fr. F.
   par degr['e]s by degrees, -- for a pedigree is properly a
   genealogical table which records the relationship of families
   by degrees; or, perh., fr. F. pied de grue crane's foot, from
   the shape of the heraldic genealogical trees.]
   1. A line of ancestors; descent; lineage; genealogy; a
      register or record of a line of ancestors.

            Alterations of surnames . . . have obscured the
            truth of our pedigrees.               --Camden.

            His vanity labored to contrive us a pedigree.
                                                  --Milton.

            I am no herald to inquire of men's pedigrees. --Sir
                                                  P. Sidney.

            The Jews preserved the pedigrees of their tribes.
                                                  --Atterbury.

   2. (Stock Breeding) A record of the lineage or strain of an
      animal, as of a horse.

Source : WordNet®

pedigree
     n 1: the descendants of one individual; "his entire lineage has
          been warriors" [syn: {lineage}, {line}, {line of descent},
           {descent}, {bloodline}, {blood line}, {blood}, {ancestry},
           {origin}, {parentage}, {stemma}, {stock}]
     2: line of descent of a pure-bred animal
     3: ancestry of a purebred animal [syn: {bloodline}]

pedigree
     adj : having a list of ancestors as proof of being a purebred
           animal [syn: {pedigree(a)}, {pedigreed}, {pureblood}, {pureblooded},
            {thoroughbred}]