depressurize

To depressurize is to let up on the force of something, especially a liquid or a gas. An astronaut must make sure that her protective spacesuit doesn't depressurize when she's performing a space walk.

Depressurize means to slow or completely stop some kind of pressure, and this verb is almost always used to describe a halt in the flow of air, oxygen, or a liquid of some kind. In movies, when a plane or spacecraft depressurizes, there's a sudden, dangerous drop in breathable air. On a commercial airplane, individual oxygen masks are available in case of such an event. The Latin root of depressurize means "to press."

Definitions of depressurize
1

v decrease the pressure of

depressurize the cabin in the air plane”
Synonyms:
decompress, depressurise
Antonyms:
pressurise, pressurize
increase the pressure in or of
Types:
puncture
cause to lose air pressure or collapse by piercing
Type of:
adjust, correct, set
alter or regulate so as to achieve accuracy or conform to a standard

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