|Origin:||'place near a battle where wounds are treated', from ambulant 'walking', from Latin ambulare; AMBLE|
a special vehicle that is used to take people who are ill or injured to hospital:
the ambulance service
The ambulance crew removed him from the wreckage.
Mike had to be taken by ambulance to hospital.
Do you think we need to call an ambulance (=phone to ask an ambulance to come)?