noun. ['ˌkɪˈlɔˌmətɝ, ˌkɪləˈmiːtɝ'] a metric unit of length equal to 1000 meters (or 0.621371 miles).
1. Noun, singular or mass Romania adheres to European Union guidelines for emissions which allow a limit of 1,000 milligrams of carbon monoxide per kilometre from January 2011 to 2014. 2. Foreign word It must have a speedometer which can show the speed in kilometre per hour.