[ dee-presh-uh-rahyz ]
/ diˈprɛʃ əˌraɪz /

verb (used with object), de·pres·sur·ized, de·pres·sur·iz·ing.

to remove the air pressure from (a pressurized compartment of an aircraft or spacecraft).
to relieve the tensions of; cause to relax: A week's vacation should depressurize me.

verb (used without object), de·pres·sur·ized, de·pres·sur·iz·ing.

to lose air pressure: The airplane cabin depressurized almost instantly.

Nearby words

  1. depressor muscle of angle of mouth,
  2. depressor muscle of eyebrow,
  3. depressor muscle of lower lip,
  4. depressor muscle of septum,
  5. depressor nerve,
  6. depretis,
  7. deprivation,
  8. deprivative,
  9. deprive,
  10. deprived

Also especially British, de·pres·sur·ise.

Origin of depressurize

First recorded in 1940–45; de- + pressurize

Related formsde·pres·sur·i·za·tion, nounde·pres·sur·iz·er, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for depressurization

British Dictionary definitions for depressurization



/ (dɪˈprɛʃəˌraɪz) /


(tr) to reduce the pressure of a gas inside (a container or enclosed space), as in an aircraft cabin
Derived Formsdepressurization or 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