DECOMPRESSION

[noun] [U]The pilot was almost sucked from the cockpit by decompression when the window broke.(specialized) A diver who comes too quickly to the surface of the sea from a great depth suffers from decompression syndrome/sickness (also the bends), when nitrogen which has dissolved under pressure forms air bubbles in the blood and can prevent it flowing correctly. This can be avoided by coming to the surface more slowly or treated by spending time in a decompression chamber, which is a small room where the air pressure is controlled.