decompression
decompression — noun
1. a drop in the air or gas pressure surrounding a person, container, or enclosed s
a drop in the air or gas pressure surrounding a person, container, or enclosed space.
The sudden decompression in the cabin made loose papers fly past Minho.
sudden decompression in an enclosed space
Engineers tested the door seal after decompression shook the small research chamber.
A warning alarm sounded when decompression began inside the damaged airlock.
The team practiced emergency drills for decompression on the training aircraft.
- depressurization
More technical and common in engineering writing.
- pressure loss
Plain description of the same event.
- pressurization
Building pressure up inside a space.
文法句型
sudden decompression in + [space]
decompression of + [cabin/chamber/airlock]
用法筆記
Most often used in aviation, diving, and engineering when a sealed space loses pressure. Compare with sense 2, which focuses on safely reducing dangerous pressure on the body.
2. the process of bringing dangerous pressure on the body down safely, especially a
the process of bringing dangerous pressure on the body down safely, especially after a deep dive.
After surfacing too fast, Jabari spent six hours in a decompression chamber.
decompression chamber after a dive
The dive doctor monitored decompression closely before allowing Lucía to travel home.
Proper decompression kept the divers' joints from hurting after the deep rescue.
The crew delayed the next dive until Ziad completed his decompression.
- decompression therapy
Used when the recovery is treated as medical care.
文法句型
complete decompression
decompression in a chamber
monitor decompression after a dive
用法筆記
Usually refers to a controlled recovery after exposure to high pressure, especially in diving. It is more specific than sense 1 because the body, not just a space, must return safely to normal pressure.
3. the process of opening compressed digital data back up so it returns to a normal
the process of opening compressed digital data back up so it returns to a normal usable size.
The app finished decompression, and Adina could finally open the video folder.
finish decompression before opening files
Large game files need decompression before the console can read them.
Decompression took longer because Christopher saved the backup on an old laptop.
A progress bar showed the decompression of the update package in real time.
- unzipping
Everyday term, especially for zip files.
- extraction
Often focuses on taking contents out of an archive.
- compression
Reducing data to a smaller size.
文法句型
decompression of + [file/data/package]
finish decompression before + [action]
用法筆記
Used in computing for files, archives, signals, and other stored data. Compare with verb sense 2 when the focus is on the action of a person or device that restores the data.
4. time spent settling down after stress so that your body and mind become calmer.
time spent settling down after stress so that your body and mind become calmer.
After the night shift, Élise needed quiet music and tea for decompression.
decompression after a stressful period
The coach built ten minutes of decompression into the end of every practice.
Kabir uses the walk home as decompression after crowded client meetings.
Good decompression helps Lien sleep after a day of nonstop calls.
- stress
The tense state decompression is meant to reduce.
文法句型
decompression after + [work/event]
time for decompression
use + [activity] + for decompression
用法筆記
This sense is about recovering from mental or emotional strain, not changing physical pressure. It often appears in workplace, sports, or family routines after an intense stretch.
decompression — verb
1. to free a person, object, or closed space from built-up pressure or tight compre
to free a person, object, or closed space from built-up pressure or tight compression.
The surgeon decompressed the pinched nerve before Mina woke from anesthesia.
decompress a body part by removing pressure
Workers decompressed the fuel tank before moving it across the yard.
A valve can decompress the pipe if the pressure rises too quickly.
The rescue team decompressed the jammed air hose before replacing the seal.
- depressurize
More technical for containers and enclosed spaces.
- relieve
Broader and often used for physical pressure on the body.
- pressurize
Raise the pressure inside a space or object.
- compress
Force something into a tighter or smaller space.
文法句型
decompress + [nerve/tank/chamber/hose]
decompress + [object] before + [action]
用法筆記
Used when someone or something actively lowers dangerous pressure or relieves tight compression. Compare with verb sense 3, where the person or container returns to lower pressure on its own.
2. to restore zipped or otherwise reduced digital data so it returns to a size a de
to restore zipped or otherwise reduced digital data so it returns to a size a device can read or play normally.
Trang decompressed the archive so the art team could use the images.
decompress + archive before use
Our media server decompresses each audio file during playback.
[device] + decompresses + file
Piotr forgot to decompress the report package before sending it to finance.
The phone can decompress the video stream without extra software.
文法句型
decompress + [file/archive/package]
[device/program] + decompresses + [data]
用法筆記
Common in computing, with files, archives, packages, streams, and signals as objects. When the focus is on taking files out of an archive, English also often uses extract or unzip.
3. to come back to a lower pressure state after being compressed or kept under high
to come back to a lower pressure state after being compressed or kept under high pressure.
Divers must decompress slowly before boarding the boat after a deep survey.
intransitive: decompress slowly after a dive
The chamber decompressed over twenty minutes while Reuben watched the pressure gauge.
If the cabin decompressed at altitude, oxygen masks would drop immediately.
Pilots trained for how passengers should sit while the aircraft decompressed.
- depressurize
Used more often in technical writing for cabins or containers.
- pressurize
Move to a higher pressure state instead.
文法句型
decompress slowly
decompress after + [dive/flight]
[chamber/cabin] + decompresses
用法筆記
Often used for divers, chambers, cabins, and other things moving back toward normal pressure without naming an external agent. Compare with verb sense 1, where someone or something does the releasing.