Compression

Compression could mean:

• Gas compression, raising the pressure and reducing the volume of gases
• Physical compression, the result of the subjection of a material to compressive stress
  • Compression arch suspended-deck bridge, a compression arch rises above the deck
• Compression, the part of a longitudinal wave where particles are the closest together
• Compressibility, a measure of volume change resulting from pressure
• Compression (geology), a system of forces that tend to decrease the volume of or shorten rocks.
• Compression ratio, a number that predicts the performance of any internal-combustion engine
• Data compression, encoding information using fewer bits
  • Image compression
  • Audio data compression
  • Video compression
    • Compression artifact, noticeable defects in audio or video that has been compressed
  • Bandwidth compression, in telecommunications
• Gain compression in electronic amplifiers, which is a result of device non-linearity
• Audio level compression, usually artificially introduced Gain compression to improve the perceived quality of audio
• Compression (functional analysis), in mathematics
  • Compression bandage, designed to reduce the flow of blood