compression
The act of pushing or squeezing something so it takes up less space or becomes more solid.
The act or process of pressing or squeezing something so that it becomes smaller, shorter, or more dense.
The act of saying or showing a lot of information in only a few words or in a small space.
The act or result of expressing a large amount of information, time, or experience in a much shorter or more concentrated form.
Strong, steady pressure put on part of the body to stop bleeding, reduce swelling, or give support.
The application of continuous pressure to a part of the body, especially to reduce bleeding, swelling, or pain, or to support weak veins or joints.
A way of making a computer file smaller so it uses less space or sends faster, while still working correctly.
The process of reducing the amount of data needed to store or transmit a digital file, especially to save space or bandwidth.
In sound work, a way to make quiet and loud sounds closer in volume so the sound is more even.
In audio engineering, the process of reducing the dynamic range of a sound signal so that loud and soft parts are closer in level.
In a car or other engine, the step where the piston pushes the fuel and air into a smaller space to raise the pressure before it burns.
In an internal combustion engine, the process in which the piston squeezes the fuel–air mixture in the cylinder, increasing its pressure before ignition.
- Base: compression
- Plural: compression, compressions
chest compression
1pressing on the chest in CPR
Hard, fast pushes on a person’s chest to move blood when their heart has stopped, as part of CPR.
- Start chest compressions immediately if the person is not breathing.
- Proper chest compression depth is important for effective CPR.
- They practiced chest compressions on a training dummy.
compression bandage
1bandage that applies pressure
A bandage that is wrapped tightly to press on an injury to stop bleeding or reduce swelling.
- The nurse applied a compression bandage to his ankle.
- Use a compression bandage after the ice pack.
- A proper compression bandage can help a sprain heal faster.
compression garment
1tight clothing that gives support
Tight clothing, like shorts, shirts, or sleeves, that presses on the body to give support or help blood flow.
- Athletes often wear a compression garment during training.
- The surgeon advised her to use a compression garment after the operation.
- He bought a compression garment to support his lower back.
compression ratio
1ratio of original to compressed size
A number that shows how much something has been made smaller by compression, by comparing before and after sizes.
- This codec achieves a high compression ratio on video files.
- The engine’s compression ratio affects its power and efficiency.
- A better compression ratio means more data in less space.
compression socks
1tight socks for leg support
Special tight socks that squeeze the legs gently to help blood move and to stop swelling.
- She wears compression socks on long flights to prevent swelling.
- The doctor recommended compression socks for his circulation problems.
- Runners often use compression socks for extra support.
compression spring
1spring that works by being squeezed
A metal coil that is pushed shorter and then pushes back to its normal shape when you let go.
- The pen uses a small compression spring inside the barrel.
- Engineers selected a stronger compression spring for the new design.
- A broken compression spring caused the machine to fail.
data compression
1reducing the size of digital data
A method that makes digital information smaller so it takes less space or sends faster, but can still be used.
- Modern video services rely heavily on data compression.
- Good data compression lets you store more files on the same drive.
- The engineer specializes in data compression algorithms.
file compression
1making computer files smaller
The act of making computer files smaller so they use less disk space or are easier to send.
- Use file compression before emailing large attachments.
- The backup software includes automatic file compression.
- File compression can make archives much easier to manage.
image compression
1reducing digital image file size
A way of making picture files smaller so they load faster or use less space, sometimes with lower quality.
- Heavy image compression can cause visible artifacts.
- Web designers often use image compression to improve page speed.
- Adjust the image compression level to balance quality and size.
lossless compression
1reversible data compression without loss
A type of compression where, after you decompress the file, you get exactly the same data as before, with nothing lost.
- Text files usually use lossless compression.
- Choose lossless compression if you need perfect image quality.
- The program supports both lossy and lossless compression methods.
lossy compression
1irreversible compression that loses data
A type of compression that makes files smaller by throwing away some details, so you cannot get the exact original file back.
- Most streaming music uses lossy compression.
- Heavy lossy compression can make images look blurry.
- They reduced the file size with strong lossy compression.
compression fracture
1bone fracture from being crushed
A type of broken bone where the bone is squeezed and crushed, often in the spine.
- The elderly patient suffered a compression fracture in her lower spine.
- Osteoporosis can lead to compression fractures in the spine.
- Osteoporosis increases the risk of compression fractures.
- The fall caused a compression fracture of one of his vertebrae.
- He wore a brace while his compression fracture healed.