pres·​sur·​ize | \ ˈpre-shə-ˌrīz How to pronounce pressurize (audio) \
pressurized; pressurizing

Definition of pressurize

transitive verb

1 : to confine the contents of under a pressure greater than that of the outside atmosphere especially : to maintain near-normal atmospheric pressure in during high-altitude or spaceflight (as by means of a supercharger)
2 : to apply pressure to
3 : to design to withstand pressure

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Other Words from pressurize

pressurization \ ˌpre-​sh(ə-​)rə-​ˈzā-​shən How to pronounce pressurization (audio) \ noun
pressurizer noun

Examples of pressurize in a Sentence

A pump is used to pressurize the fuel. The system that pressurizes the airplane's cabin failed to operate correctly. Don't let them pressurize you to do anything you don't want to do.
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Recent Examples on the Web The packer and claw arm mechanism are still powered hydraulically, requiring a groaning pump to pressurize the hoses. Dan Neil, WSJ, "Electric Trash Trucks Are Coming Quietly to Your Town," 7 Oct. 2020 Noteworthy features include an 8.5-inch Picatinny rail, Magpul AR-style grip, rear sling stud, three M-LOK attachment points, and a Foster connection to pressurize the carbon fiber reservoir quickly to a maximum pressure of 4,500 PSI. Joseph Albanese, Field & Stream, "8 Big-Bore Airguns That Are Powerful Enough to Take Big Game," 21 Aug. 2020 Avoid packaging with pumps, droppers, and pressurized aerosol cans: None of these can be easily disposed of. Emma Seymour, Good Housekeeping, "How to Spot and Use Eco-Friendly Packaging," 4 May 2020 The vehicle, dubbed SN4—which stands for Serial Number 4—was pressurized to 4.9 bar, or 4.9 times the atmospheric pressure at the surface of the Earth. Eric Berger, Ars Technica, "Rocket Report: Starship set for static fire test, meet “The Dorado” booster," 1 May 2020 In this test, the fuel tanks were filled with liquid nitrogen and then pressurized to levels seen during flight. Jennifer Leman, Popular Mechanics, "SpaceX's Starship Prototype Finally Nailed a Crucial Test," 27 Apr. 2020 The technology is more expensive: A stainless-steel pressurized unit can cost from $175,000 for a basic unit to $500,000 for a high-end unit, while a cremation unit costs about $110,000. Caren Chesler, Popular Mechanics, "Burning Out: What Really Happens Inside a Crematorium," 8 Nov. 2019 Another kick, this time from Willie Le Roux, set up a try for Mapimpi on 68 minutes and Snyman got the game's sixth after Kolbe pressurized Matteo Minozzi into throwing a loose pass in front of the Italian try line. George Ramsay, CNN, "South Africa thrashes Italy as Azzurri see red for horror tip tackle," 4 Oct. 2019 If the oxygen cylinders run out, this ventilator can use air in the cabin and pressurize it. Christina Mackenzie, Popular Science, "Inside the flying military hospital that’s treating COVID-19 patients," 30 Mar. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pressurize.' 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 pressurize

1938, in the meaning defined at sense 1

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Time Traveler for pressurize

Time Traveler

The first known use of pressurize was in 1938

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Statistics for pressurize

Last Updated

21 Oct 2020

Cite this Entry

“Pressurize.” Dictionary, Merriam-Webster, Accessed 29 Oct. 2020.

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More Definitions for pressurize


How to pronounce pressurize (audio)

English Language Learners Definition of pressurize

: to press (something) tightly into a space or container
: to cause the air pressure inside (something, such as an airplane) to be the same as or close to the pressure of air on the Earth's surface

More from Merriam-Webster on pressurize

Nglish: Translation of pressurize for Spanish Speakers

Britannica English: Translation of pressurize for Arabic Speakers

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