Source : Webster's Revised Unabridged Dictionary (1913)

Consanguineous \Con`san*guin"e*ous\, a. [L. conguineus; con- +
   sanguis blood: cf. F. consanguin. See {Sanquine}.]
   Of the same blood; related by birth; descended from the same
   parent or ancestor. --Shak.

Source : WordNet®

consanguineous
     adj : related by blood [syn: {akin(p)}, {blood-related}, {cognate},
            {consanguine}, {kin(p)}]