pressurize
verb
pres·sur·ize
ˈpre-shə-ˌrīz 
pressurized; pressurizing
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
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.
Recent Examples on the Web
Rather than merely sealing tools against water intrusion, Nemo’s patented system actively pressurizes the tool’s internal chamber with air to match or exceed surrounding water pressure.
—
Atharva Gosavi, Interesting Engineering, 24 Sep. 2025
The cabins of commercial planes aren’t pressurized or heated like the rest of the aircraft, causing temperatures to decrease rapidly and so the chances of catching hypothermia are likely, along with the possibility of being injured upon the impact of landing.
—Escher Walcott, PEOPLE, 23 Sep. 2025
Hyperbaric chambers are pressurized, tubelike devices that deliver air that consists of 100% oxygen, which helps patients heal more quickly from certain injuries or illnesses but also creates a highly combustible environment.
—Elizabeth Chuck, NBC news, 22 Sep. 2025
Meanwhile, the water column and the surrounding rock pressurizes the reactor to 160 ATM (2,352 psi) without the need for special equipment.
—New Atlas, 21 Sep. 2025
See All Example Sentences for pressurize
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Atharva Gosavi, Interesting Engineering, 24 Sep. 2025
The cabins of commercial planes aren’t pressurized or heated like the rest of the aircraft, causing temperatures to decrease rapidly and so the chances of catching hypothermia are likely, along with the possibility of being injured upon the impact of landing.
—Escher Walcott, PEOPLE, 23 Sep. 2025
Hyperbaric chambers are pressurized, tubelike devices that deliver air that consists of 100% oxygen, which helps patients heal more quickly from certain injuries or illnesses but also creates a highly combustible environment.
—Elizabeth Chuck, NBC news, 22 Sep. 2025
Meanwhile, the water column and the surrounding rock pressurizes the reactor to 160 ATM (2,352 psi) without the need for special equipment.
—New Atlas, 21 Sep. 2025
See All Example Sentences for pressurize
Cite this Entry
“Pressurize.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pressurize. Accessed 22 Oct. 2025.
Copy CitationKids Definition
pressurize
verb
pres·sur·ize
ˈpresh-ə-ˌrīz
pressurized; pressurizing
1
: to maintain near-normal atmospheric pressure in
pressurize an airplane cabin
2
: to apply pressure to
pressurization
noun
ˌpresh-(ə-)rə-ˈzā-shən
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