Dry ice is a common term for solid carbon dioxide used widely in various industries from food preservation to medical research. Due to its widespread usage, there exist several synonyms for dry ice such as cardice, CO2 ice, and carbonic ice. Other synonyms include dense carbon dioxide, cold carbon dioxide snow, and sublimation snow. It is an incredibly versatile material that, unlike water ice, never melts into a liquid state but instead turns into gas. The synonyms for dry ice reflect its nature as a unique substance that can lower the temperature of an item in a dramatic and long-lasting way.