1. to reduce or remove pressure from something
Usage: British English spelling (American English: depressurizes); third person singular present tense

Examples

• The pilot depressurises the cabin gradually before landing.
• The technician depressurises the system to prevent damage.
• The valve automatically depressurises the tank when pressure exceeds safe limits.
• She depressurises the container by opening the release valve.
• The equipment depressurises slowly to allow for safe adjustment.