1. past tense and past participle of immobilise; to prevent from moving or to make unable to move
Usage: British spelling (American: immobilized); commonly used in medical, military, and general contexts

1. unable to move or be moved; held in a fixed position
Usage: British spelling (American: immobilized); often used in medical contexts to describe injured limbs or patients

Examples

• The patient's broken arm was immobilised in a cast for six weeks.
• Police immobilised the suspect's vehicle by deflating its tyres.
• The injured player remained immobilised on the stretcher.
• The device immobilised the machinery to prevent accidental operation.
• With her leg immobilised, she had to use crutches to walk.
• The security system immobilised the door locks during the emergency.
• Doctors immobilised the fracture to allow proper healing.