Share this entry

decompression Line breaks: de|com|pres¦sion
Pronunciation: /diːkəmˈprɛʃ(ə)n/

Definition of decompression in English:


[mass noun]
1Reduction in air pressure: decompression of the aircraft cabin
More example sentences
  • An aviation expert added that even a small explosion on board could have been enough to cause decompression and suck people out of the aircraft.
  • The plane descended but the reason for decompression could not be found, so the aircraft returned to Oxford.
  • This seems like the suggestion of a second-rate Hollywood director, for the single reason that you cannot discharge a firearm in a pressurised environment, because there would be catastrophic decompression.
1.1A gradual reduction of air pressure on a person who has been experiencing high pressure while diving: itching and rashes often occur following decompression [as modifier]: the swim took some two hours, including a one hour decompression stop
More example sentences
  • Deeper and longer diving means more decompression, whichever gas you're breathing.
  • Before they return to the surface they will need to undergo a 17-hour decompression in the Aquarius, with atmospheric pressure gradually reduced to that on the surface.
  • We discourage dives below 30 meters, especially if decompression stops are required.
2The process of expanding computer data to its normal size so that it can be read by a computer: this disk contains a number of utilities which require decompression
More example sentences
  • Mapping the data prior to decompression reduces the random access memory resources otherwise required.
  • The inverse process - decompression - doesn't put any serious load on the memory subsystem.
  • I projected how long compression and decompression should take on computers of various speeds by simply scaling actual test results from my 1.7GHz CPU.

Definition of decompression in:

Share this entry


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day exemplum
Pronunciation: iɡˈzempləm
an example or model...