The term 'floating ice block' refers to a large mass of ice that is found in the ocean. It is usually composed of pieces of ice that have broken off from glaciers or icebergs and are then carried by ocean currents. The two crossword solutions for this term are 'berg' and 'FLOE'. A berg is a large mass of floating ice, often seen in the Arctic and Antarctic regions. A FLOE is a sheet of floating ice, usually found in the polar regions.