Compressed
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Compressed".

Look up compression, compressor in Wiktionary, the free dictionary.

Compression may refer to:

In physical science:

• Physical compression, the result of the subjection of a material to compressive stress (the opposite of tension)
  • Compression member, a class of structural elements, of which a column is the most common specific example
  • Compressibility, the reciprocal of the bulk modulus (typically for solids)
• Gas compression, raising the pressure and reducing the volume of gases
  • Compression ratio, a number that predicts the performance of any internal-combustion engine
  • Compressibility, a measure of volume change resulting from pressure (typically for fluids)
• Compression (geology), a system of forces that tend to decrease the volume of or shorten rocks

In information science:

• Data compression, the process of 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, a result of device non-linearity
• Audio level compression, usually artificially introduced gain compression to improve the perceived quality of audio

In other sciences and technologies:

• Compression, in zoology and paleontology, refers to when an animal, or part of an animal, is shorter or narrower compared with other animals in the same group; e.g. the body of a lizard may be compressed (flattened) so it can better fit into crevices under rocks
• Compression (functional analysis), in mathematics
• Compression bandage, designed to reduce the flow of blood

See also

• Compressor (disambiguation)
• compress, a UNIX program
• Compaction
• Decompression
• Expansion
• Compression shorts

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