1. having had pressure reduced or removed from an enclosed space or container
Usage: British spelling; American English uses 'depressurized'

1. past tense and past participle of depressurise; to reduce or remove pressure from an enclosed space or container
Usage: British spelling; American English uses 'depressurized'; commonly used in aviation, engineering, and industrial contexts

Examples

• The aircraft cabin was depressurised before the emergency landing.
• Engineers depressurised the system to prevent further damage.
• The depressurised chamber allowed technicians to safely access the interior.
• After the accident, the tank was slowly depressurised over several hours.
• A depressurised environment is essential for certain manufacturing processes.
• The pilot depressurised the cabin gradually to avoid discomfort.