tritordeum /tɹɪˈtɔː(ɹ)di.əm/ noun1 •An amphiploid cereal derived from the cross between a South American wild barley (Hordeum chilense) and durum wheat.In terms of yield, breeding in Tritordeum has allowed an increase to up to 80% of that of commercial wheat cultivars, maintaining a protein content approximately 5% higher than in wheat. — 2012