brother-german. A full brother; the son of both of one’s parents. See GERMAN.
consanguine brother (kahn-sang-gwin or k[schwa]n-san-gwin).Civil law. A brother who has the same father, but a different mother.
half brother. A brother who has the same father or the same mother, but not both.
stepbrother. The son of one’s stepparent.
uterine brother (yoo-t[schwa]r-in).Civil law. A brother who has the same mother, but a different father.