compression

/kəm'preʃn/
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compression

A worker uses a hydraulic press for metal compression.

Definition
  1. Noun:
    • The act or process of applying pressure to something, causing it to become more compact or to occupy less space. This is the physical act of squeezing or pressing.
    • The reduction in volume and increase in pressure of a gas, often due to cooling or mechanical force.
    • The process or result of becoming smaller or pressed together. This can refer to physical objects or abstract concepts like time.
    • The act of encoding digital data to reduce its size for more efficient storage or transmission.
Examples of Usage
  • Physical Pressure/Reduction in Size:
    • The compression of the spring stores potential energy.
    • The trash compactor uses powerful compression to reduce waste volume.
  • Gas/Physics Context:
    • The compression stroke in an engine increases the air-fuel mixture's pressure.
    • The gas undergoes compression as it cools.
  • Data/Information Context:
    • File compression is essential for sending large attachments via email.
    • The MP3 format uses audio compression to reduce file size.
Advanced Usage
  • "Compression ratio": In engineering, the ratio of the volume of a combustion chamber from its largest to its smallest capacity.
    • A higher compression ratio generally leads to greater engine efficiency.
  • "Lossless compression": A data compression method that allows the original data to be perfectly reconstructed from the compressed data.
    • For archiving important documents, lossless compression is preferred.
  • "Compression of ideas": A figurative use meaning the condensation or concise expression of thoughts.
    • The poet is known for the powerful compression of ideas in her short verses.
Variants and Related Words
  • Compress (verb): To press or squeeze something so that it occupies less space or to make something more compact.
    • Compress the folder into a ZIP file.
  • Compressive (adjective): Relating to or producing compression.
    • The material has high compressive strength.
  • Compressor (noun): A machine or device that compresses air or another gas.
    • The refrigerator's compressor stopped working.
Synonyms
  • Compaction: The process of becoming more compact.
  • Condensation: The act of making something more concise or dense; in physics, the change from gas to liquid.
  • Constriction: The action of making something narrower or tighter.
  • Reduction: The action of making something smaller or less in amount.
Related Phrases
  • Under compression: In a state of being compressed.
    • The bridge's support pillars are constantly under compression.
  • Compression garment: Tight-fitting clothing worn to support body parts or reduce swelling.
    • Athletes sometimes wear compression garments for recovery.
Related Idioms
  • To compress time: To make a period seem shorter or to fit many events into a short period.
    • The film compresses ten years of history into a two-hour narrative.
compression

A worker uses a hydraulic press for metal compression.

Noun
  1. applying pressure
  2. encoding information while reducing the bandwidth or bits required
  3. the process or result of becoming smaller or pressed together
    • the contraction of a gas on cooling
  4. an increase in the density of something

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