Source : Webster's Revised Unabridged Dictionary (1913)

Half-blooded \Half"-blood`ed\, a.
   1. Proceeding from a male and female of different breeds or
      races; having only one parent of good stock; as, a
      half-blooded sheep.

   2. Degenerate; mean.

Source : WordNet®

half-blooded
     adj : (of animals) having only one purebred parent [syn: {half-bred},
            {half-breed}]