compression

noun

com·​pres·​sion kəm-ˈpre-shən How to pronounce compression (audio)
1
a
: the act, process, or result of compressing
b
: the state of being compressed
2
: the process of compressing the fuel mixture in a cylinder of an internal combustion engine (as in an automobile)
3
: the compressed remains of a fossil plant
4
: conversion (as of data, a data file, or a communications signal) in order to reduce the space occupied or bandwidth required
compressional
kəm-ˈpresh-nəl How to pronounce compression (audio)
-ˈpre-shə-nᵊl
adjective

Examples of compression in a Sentence

the compression of a long, complicated story into a two-hour movie is never easy
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Daviet died of cardiorespiratory failure with signs of asphyxiation and cervical compression, according to the police prosecutor’s statement. Catherine Nicholls, CNN Money, 24 Oct. 2025 Five years later, its compression-fit, tech-enabled athletic wear is set to debut this month. Marcus Smith, Sacbee.com, 24 Oct. 2025 The expandable design gives you extra packing space, while seatbelt-style compression straps help keep your clothes secure and maximize interior storage area. Nora Colomer May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 24 Oct. 2025 On long flights, your legs tend to swell, leading to discomfort, cramping, and even numbness—but a good pair of compression leggings, like this pick from CompressionZ, can prevent those symptoms. Hillary Maglin, Travel + Leisure, 23 Oct. 2025 See All Example Sentences for compression

Word History

First Known Use

15th century, in the meaning defined at sense 1a

Time Traveler
The first known use of compression was in the 15th century

Browse Nearby Words

Cite this Entry

“Compression.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/compression. Accessed 29 Oct. 2025.

Kids Definition

compression

noun
com·​pres·​sion kəm-ˈpresh-ən How to pronounce compression (audio)
1
: the act, process, or result of compressing : the state of being compressed
2
: the process of compressing the fuel mixture in the cylinders of an internal-combustion engine
compressional adjective

Medical Definition

compression

noun
com·​pres·​sion kəm-ˈpresh-ən How to pronounce compression (audio)
: the act, process, or result of compressing especially when involving a compressing force on a bodily part
compression of an artery by forceps
compression of the brain by the bones of a depressed fracture

More from Merriam-Webster on compression

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!