Collins COBUILD Advanced Learner's English Dictionary - median strip

(median strips) The median strip is the strip of ground, often covered with grass, that separates the two sides of a major road. (AM; in BRIT, use central reservation) N-COUNT MEDIATE (mediates, mediating, mediated) 1. If someone mediates between two groups of people, or mediates an agreement between them, they try to settle an argument between them by talking to both groups and trying to find things that they can both agree to. My mom was the one who mediated between Zelda and her mom... United Nations officials have mediated a series of peace meetings between the two sides... The Vatican successfully mediated in a territorial dispute between Argentina and Chile in 1984... UN peacekeepers mediated a new cease-fire. VERB: V between pl-n, V n between pl-n, V, V n • mediation The agreement provides for United Nations mediation between the two sides... N-UNCOUNT • mediator (mediators) An archbishop has been acting as mediator between the rebels and the authorities. N-COUNT 2. If something mediates a particular process or event, it allows that process or event to happen and influences the way in which it happens. (FORMAL) ...the thymus, the organ which mediates the response of the white blood cells... VERB: V n • mediation This works through the mediation of the central nervous system. N-UNCOUNT