Perimeter meaning

pə-rĭm'ĭ-tər
The perimeter is the outside line forming the boundary of some shape or something such as a plot of land or the length of that outside line.

An example of a perimeter is the line where your fence goes on the border of your yard.

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The three-point line.
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A defended boundary protecting a military position.
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The outer limits of an area.
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The outer boundary of a figure or area.
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The total length of this.
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An optical instrument for testing the scope of vision and the visual powers of various parts of the retina.
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A boundary strip where defenses are set up.
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The sum of the lengths of the segments that form the sides of a polygon.
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The total length of any closed curve, such as the circumference of a circle.
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The boundary of a system or network, which defines the inside and outside. It is typically determined by firewalls and addresses. See DMZ.
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(mathematics) The sum of the distance of all the lengths of the sides of an object.
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The outer limits of an area. See Synonyms at circumference.
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(mathematics) The length of such a boundary.
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A fortified strip or boundary usually protecting a military position.
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An instrument for determining the extent and shape of the field of vision.
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Origin of perimeter

  • Middle English perimetre from Latin perimetros from Greek peri- peri- metron measure meter2
    From American Heritage Dictionary of the English Language, 5th Edition
  • From Ancient Greek περίμετρος (perimetros).
    From Wiktionary