I. ˈpower ˌsteering BrE AmE ( also power-assisted steering ) noun [uncountable]
a system for ↑ steer ing a vehicle which uses power from the vehicle’s engine and so needs less effort from the driver:
Most new cars now have power steering.
II. ˌpower-assisted ˈsteering BrE AmE noun [uncountable]
↑ power steering