noun
: a coarse drought-resistant but frost-sensitive annual grass ( Setaria italica ) with a thick heavy elongated spicate inflorescence that is probably derived from an Old World bristle grass ( S. viridis ), has differentiated into a number of varieties under cultivation, and is grown for grain, hay, and forage in the Old World and chiefly for green fodder and silage in the U.S. — called also Hungarian grass, Italian millet ; see german millet , siberian millet