Which is a general term for a mass of perennial ice,resting on land or floating in the sea attached to a landmass?

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A glacier is a general term for a mass of perennial ice, resting on land or floating in the sea attached to a landmass. The snowline is the altitude above which snow remains throughout the year. An iceberg is a large piece of freshwater ice that has broken off a glacier or an ice shelf and is floating freely in open water. A moraine is a mass of rocks and sediment carried and deposited by a glacier.

Which Is a General Term for a Mass of Perennial