Sublime has a number of meanings, such as lofty, noble, above the rest. However, in the world of chemistry, sublime means to go directly from solid to gas, do not pass liquid, do not collect in a flask. The classic example of this is dry ice, solid carbon dioxide.
Carbon dioxide gas is everywhere (a fact that sends Al Gore into conniptions) as the product of combustion and biological use of carbon sources like sugars and fats. This means it is easily available for scientific study. As scientists sought to chill this gas, they found that they could not liquefy it at atmospheric pressure, no matter how much they cooled it down. Liquid carbon dioxide only exists at high pressures. That means the solid left no liquid behind as it sublimed – thus the name dry ice.More