half brother n a brother who has only one parent in common with you Synonym(s) stepbrother half-brother
News & Articles half brother Walt Arfons, a Pioneer With Cars Using Jet Engines, Dies at 96 Mr. Arfons, with his half brother, Art Arfons, built some of the fastest racecars of the 1950s and ’60s. June 15, 2013 - New York Times