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
The closeout crew will then pressurize the Crew Module side hatch with gaseous nitrogen so that it can be quickly opened in the event of an emergency exit.
—
Miles Doran, CBS News, 1 Apr. 2026
As the first astronauts to wear the new suits in space, the Artemis II crew will be testing their ability to quickly put the suits on and pressurize them; install their seats and get into them while wearing the suits; eat and drink through a port on the spacesuits’ helmet; and other functions.
—Richard Tribou, The Orlando Sentinel, 1 Apr. 2026
Part of the suit test assesses the crew's ability to rapidly don and pressurize their suits, pressurize them and get strapped into their seats.
—Josh Dinner, Space.com, 31 Mar. 2026
Instead of using cryogenic hydrogen, the company is using gaseous hydrogen that's been pressurized to 700 atmospheres.
—David Szondy
march 26, New Atlas, 26 Mar. 2026
See All Example Sentences for pressurize
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Miles Doran, CBS News, 1 Apr. 2026
As the first astronauts to wear the new suits in space, the Artemis II crew will be testing their ability to quickly put the suits on and pressurize them; install their seats and get into them while wearing the suits; eat and drink through a port on the spacesuits’ helmet; and other functions.
—Richard Tribou, The Orlando Sentinel, 1 Apr. 2026
Part of the suit test assesses the crew's ability to rapidly don and pressurize their suits, pressurize them and get strapped into their seats.
—Josh Dinner, Space.com, 31 Mar. 2026
Instead of using cryogenic hydrogen, the company is using gaseous hydrogen that's been pressurized to 700 atmospheres.
—David Szondy
march 26, New Atlas, 26 Mar. 2026
See All Example Sentences for pressurize
Cite this Entry
“Pressurize.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pressurize. Accessed 5 Apr. 2026.
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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