"pressurizing" in the verb sense
1. supercharge, pressurize, pressurise
increase the pressure on a gas or liquid
2. pressurize, pressurise
maintain a certain pressure
"the airplane cabin is pressurized"
"pressurize a space suit"
3. pressurize, pressurise
increase the pressure in or of
"The captain will pressurize the cabin for the passengers' comfort"
Source: WordNet® (An amazing lexical database of English)
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