tur ‧ bo ‧ charg ‧ er /ˈtɜːbəʊˌtʃɑːdʒə $ ˈtɜːrboʊˌtʃɑːrdʒər/ BrE AmE noun [countable]
[ Date: 1900-2000 ; Origin: turbo- (from turbine ) + -charger (as in supercharger ) ]
a system that makes a vehicle more powerful by using a turbine to force air and petrol into the engine under increased pressure