Oxford Dictionary English central reservation nounnoun BrE BrE//ˌsentrəl rezəˈveɪʃn// ; NAmE NAmE//ˌsentrəl rezərˈveɪʃn// (British English) (North American English median, median strip) Controlling traffic Add to my wordlistjump to other resultsa narrow strip of land that separates the two sides of a major road such as a motorway or interstate See related entries: Controlling trafficCheck pronunciation: central reservation oxfordlearnersdictionaries.com