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1. Oxford American Dictionary

   perimeter

   • IPA[pəˈrimədər]

   美式

   • n.
     the continuous line forming the boundary of a closed geometric figure；the outermost parts or boundary of an area or object

   • noun: perimeter, plural noun: perimeters

2. • 釋義

   n.

   名詞

   • 1. the continuous line forming the boundary of a closed geometric figure the perimeter of a rectangle 同義詞 circumference, outside, outer edge
   • ▪ the outermost parts or boundary of an area or object the perimeter of the garden my presence on the perimeter of his life 同義詞 boundary, border, frontier, limits, outer limits, ... 更多bounds, confines, edge, margin, fringe(s), periphery, borderline, verge, literarybourn, marge, skirt, rareambit反義詞 center, middle, heart
   • ▪ a defended boundary of a military position or base.
   • ▪ an area away from the basket, beyond the reach of the defensive team he was very patient in working the ball around the perimeter
   • 2. an instrument for measuring the extent and characteristics of a person's field of vision.
3. • 更多解釋

   perimeter

   • IPA[pɪˈrɪmɪtə]

   英式

   • n.
     the continuous line forming the boundary of a closed geometrical figure: the perimeter of a rectangle

   Oxford Dictionary