decompression

[dee-kuhm-presh-uhn]
noun
1.
the gradual reduction in atmospheric pressure experienced by divers, construction workers, etc., after working in deep water or breathing compressed air.
2.
the act or process of releasing from pressure.
3.
Surgery. the procedure of relieving increased cranial, cardiac, or orbital pressure.
4.
a state of relief from pressure; a return to normalcy after a stressful period or situation.
5.
Computers. the restoration of data that has undergone compression to its original state.

Origin:
1900–05; probably < French décompression. See de-, compression

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World English Dictionary
decompress (ˌdiːkəmˈprɛs)
 
vb
1.  to relieve (a substance) of pressure or (of a substance) to be relieved of pressure
2.  to return (a diver, caisson worker, etc) to a condition of normal atmospheric pressure gradually from a condition of increased pressure or (of a diver, etc) to be returned to such a condition
 
decom'pression
 
n
 
decom'pressive
 
adj

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Etymonline
Word Origin & History

decompression
1905, from de- + compression.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

decompression de·com·pres·sion (dē'kəm-prěsh'ən)
n.

  1. The relief of pressure on a body part by surgery.

  2. The restoration of deep sea divers and caisson workers to atmospheric pressure by means of a decompression chamber.

The American Heritage® Stedman's Medical Dictionary
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Example sentences
It had suffered from rapid decompression syndrome, or the bends.
Surgical decompression of the area may reduce symptoms if the disorder is caused by pressure on the nerve.
Oxygen toxicity, the narcotic effect of nitrogen and high decompression penalty of helium.
It makes me think that the universe is decompressing, in the sense of data decompression, as it grows.
Image for decompression
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