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depressurize

[dee-presh-uh-rahyz] /diˈprɛʃ əˌraɪz/
verb (used with object), depressurized, depressurizing.
1.
to remove the air pressure from (a pressurized compartment of an aircraft or spacecraft).
2.
to relieve the tensions of; cause to relax:
A week's vacation should depressurize me.
verb (used without object), depressurized, depressurizing.
3.
to lose air pressure:
The airplane cabin depressurized almost instantly.
Also, especially British, depressurise.
Origin of depressurize
1940-1945
First recorded in 1940-45; de- + pressurize
Related forms
depressurization, noun
depressurizer, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for depressurise

depressurize

/dɪˈprɛʃəˌraɪz/
verb
1.
(transitive) to reduce the pressure of a gas inside (a container or enclosed space), as in an aircraft cabin
Derived Forms
depressurization, depressurisation, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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