A mass of fragments, as of ice, rocks, or other debris. The ship navigated carefully through the brash in the icy waters.
A pile of loose stones or broken rock. The hikers had to climb over a brash to continue their journey.
Indigestion or a sudden eruption of acidic fluid into the mouth; water brash (chiefly British medicine). The baby suffered from brash after feeding and cried until she was burped.