D defs.my
Entry 3 senses Webster, 1913

Half blood

/(häf"blŭd`)/ · Half· blood · IPA
01 n. The relation between persons born of the same father or of the same mother, but not of both; as, a brother or sister of the half blood. See…
  1. 1.
    The relation between persons born of the same father or of the same mother, but not of both; as, a brother or sister of the half blood. See Blood, n., 2 & 4. See: Blood
  2. 2.
    A person so related to another.
  3. 3.
    A person whose father and mother are of different races; a half-breed.