What is the meaning of the word "ice mass"?

Definitions:

  1. A large accummulation of ice, often formed from compacted snow, that remains year-round. copy to clipboard NOUN
    • Ice masses in the polar regions are critical indicators of climate change. copy to clipboard
  2. Refers to a large quantity or structure of ice, usually referring to a glacier, ice cap, or ice sheet. copy to clipboard NOUN
    • The retreat of ice masses in the Himalayas poses a risk to water supplies for million of people. copy to clipboard

Synonyms: