com·​pres·​sion | \ kəm-ˈpre-shən How to pronounce compression (audio) \

Definition of compression

1a : 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

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Other Words from compression

compressional \ kəm-​ˈpresh-​nəl How to pronounce compressional (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

Pool staff provided cardiac chest compressions, and the boy expelled fluids from his mouth and began breathing on his own. Karen Pilarski, Milwaukee Journal Sentinel, "This isn't the first time the boy who nearly drowned at an Elm Grove pool was left unattended, police say," 12 July 2019 This electronic brain monitors wheel displacement sensors, accelerometers, and other sensors within the car to control each wheel's damper independently, both for compression and rebound. Jonathan M. Gitlin, Ars Technica, "The 2019 Volkswagen Golf R is king of the hot hatches," 12 July 2019 The 2-year-old suffered compression fractures to his spine and two subdural hematomas, bruising and swelling. Cliff Pinckard,, "Ohio baby-sitter accused of beating children, causing back injuries," 11 July 2019 Using a machine for pneumatic compression is one form a treatment for the condition. Christina Oehler,, "Wendy Williams Was Diagnosed With Lymphedema–Here's What That Means," 9 July 2019 The Red Sox have been using compression boots – which fit around the legs and massage and compress them, aiding in flushing out lactic acid and promoting quicker recovery from exertion - since 2017. Lori Riley,, "Floating a new idea: Local triathletes team up to offer recovery techniques for athletes, others," 7 July 2019 Some other tips to keep dogs calm during July 4th: Try compression shirts that help calm them. Joy Sewing, Houston Chronicle, "Meet Goober, a Lab-mix stolen from shelter, returned by police, then adopted and abandoned," 3 July 2019 When hooked up to a patient the portable Lucas machine delivers consistent chest compressions to a patient., "New fire gear helps EMS workers deliver CPR," 28 June 2019 By phone, medical officials guided Fish and the physician assistant through chest compressions and rescue breaths on Latimer. Andrew Kenney, The Denver Post, "Head-on bike collision on Denver’s Cherry Creek Trail renews talk about speed and safety," 26 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'compression.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of compression

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

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Statistics for compression

Last Updated

19 Jul 2019

Look-up Popularity

Time Traveler for compression

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

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More Definitions for compression


com·​pres·​sion | \ kəm-ˈpre-shən How to pronounce compression (audio) \

Kids Definition of compression

: the act, process, or result of pressing something together


com·​pres·​sion | \ kəm-ˈpresh-ən How to pronounce compression (audio) \

Medical Definition of compression

: 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

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Comments on compression

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characterized by aphorism

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