"Glacial masses" refers to the massive bodies of ice that cover large areas of the Earth's surface. There are several synonyms that can be used to describe these icy landscapes. One common term is "ice caps," which refers to the broad sheets of ice that cover the polar regions of the planet. Another term is "ice sheets," which describes the large and thick masses of ice that can be found in Antarctica and Greenland. "Glaciers" are also another term used to refer to these icy masses, as they are formed from the slow-moving movements of ice over many years. Other synonyms for "glacial masses" may include "frosty wastes," "frozen tundras," and "arctic expanses".