- 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 and 4. - A person so related to another. - A person whose father and mother are of different
races; a half-breed.
- A prefix used before father, mother, brother, sister, son,
daughter, child, etc., to indicate that the person thus spoken of is
not a blood relative, but is a relative by the marriage of a parent;
as, a stepmother to X is the wife of the father of X, married by him
after the death of the mother of X. See Stepchild, Stepdaughter,
Stepson, etc.