Definition of perimeter noun from the Oxford Advanced American Dictionary

     

    perimeter

     noun
    noun
    NAmE//pəˈrɪmət̮ər//
     
     
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  1. 1the outside edge of an area of land Guards patrol the perimeter of the estate. a perimeter fence/track/wall
  2. 2(mathematics) the total length of the outside edge of an area or a shape Find the area and perimeter of the following shapes. compare circumference
See the Oxford Advanced Learner's Dictionary entry: perimeter