dust forming a cloud or deposited in a mass

demolition stour clung thickly to the walls

a river of southern England which rises in west Wiltshire and flows south-east to meet the English Channel east of Bournemouth

a river of eastern England which rises south-east of Cambridge and flows south-eastwards to the North Sea

a river of central England which rises west of Wolverhampton and flows south-westwards through Stourbridge and Kidderminster to meet the Severn at Stourport-on-Severn