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noun ADJ. inner, outer | northern, southern, etc. VERB + PERIMETER mark The river marks the eastern perimeter of our land. PERIMETER + NOUN fence, wall | road, track PREP. along the ~ I lugged my suitcase along the perimeter of the square. | around/round the ~ We walked round the perimeter of the prison. | inside/outside the ~ They demonstrated just outside the perimeter of the embassy. | on the ~ There's a small shop on the perimeter of the camp.
Oxford Collocations Dictionary