verb (used with object), depressurized, depressurizing.
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), depressurized, depressurizing.
to lose air pressure: The airplane cabin depressurized almost instantly.
Also, especially British, depressurise.