noun
: a plain of delta land (as in Louisiana) with a soil of matted vegetable mold resting upon water, peat, or quicksands and vibrating to the tread
noun
: a plain of delta land (as in Louisiana) with a soil of matted vegetable mold resting upon water, peat, or quicksands and vibrating to the tread
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012