[ krahy-oh-sfeer ]

  1. the part of the earth’s surface where, at temperatures below 32°F (0°C), the water is frozen solid. Even a small pond while frozen over during the winter is part of the cryosphere, but cryosphere refers more often to large regions covered in snow and ice for much or all of the year, as the ice sheets of Antarctica and Greenland, glaciers, icebergs, and expanses of permafrost, all of which are especially sensitive to global shifts in climate: Her research on the cryosphere included fieldwork at the South Pole with other climatologists.

Origin of cryosphere

First recorded in 1935–40; cryo- + -sphere

Words Nearby cryosphere Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use cryosphere in a sentence

  • The Barometer will also examine national and transnational efforts to deploy technologies, regulation, and commercial solutions that both tackle climate change and are deployed to roll back the damage caused to marine environments and the cryosphere.

    Blue water thinking | MIT Technology Review Insights | June 2, 2021 | MIT Technology Review