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Definition of perimeter - 7 dictionary results
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pe⋅rim⋅e⋅ter

  [puh-rim-i-ter]
Use perimeter in a Sentence
–noun
1. the border or outer boundary of a two-dimensional figure.
2. the length of such a boundary.
3. a line bounding or marking off an area.
4. the outermost limits.
5. Military. a fortified boundary that protects a troop position.
6. Ophthalmology. an instrument for determining the peripheral field of vision.
Origin:
1585–95; < F périmètre < L perimetros (fem.) < Gk perímetron (neut.). See peri-, -meter

Related forms:
pe⋅rim⋅e⋅ter⋅less, adjective
pe⋅rim⋅e⋅tral, per⋅i⋅met⋅ric  [per-uh-me-trik] , per⋅i⋅met⋅ri⋅cal, adjective
per⋅i⋅met⋅ri⋅cal⋅ly, adverb
pe⋅rim⋅e⋅try, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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pe·rim·e·ter   (pə-rĭm'ĭ-tər)   
n.  
  1. Mathematics
    1. A closed curve bounding a plane area.
    2. The length of such a boundary.
  2. The outer limits of an area. See Synonyms at circumference.
  3. A fortified strip or boundary usually protecting a military position.

[Middle English perimetre, from Latin perimetros, from Greek : peri-, peri- + metron, measure; see meter2.]
per'i·met'ric (pěr'ə-mět'rĭk), per'i·met'ri·cal (-rĭ-kəl) adj., per'i·met'ri·cal·ly adv.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Perimeter

Per*im"e*ter\, n. [Gr. ?; ? around + ? measure: cf. F. p['e]rim[`e]tre.]

1. (Geom.) The outer boundary of a body or figure, or the sum of all the sides.

2. An instrument for determining the extent and shape of the field of vision.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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Language Translation for : perimeter
Spanish: perímetro,
German: der Umkreis,
Japanese: 周辺
More Translations »

perimeter 
1592, "line around a figure or surface," from L. perimetros, from Gk. perimetros "circumference," from peri- "around" + metron "measure" (see meter (2)). Military sense of "boundary of a defended position" is attested from 1943.
Online Etymology Dictionary, © 2001 Douglas Harper
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Main Entry: pe·rim·e·ter
Pronunciation: p&-'rim-&t-&r
Function: noun
1 a : the boundary of a closed plane figure b : the length of a perimeter
2 : an instrument for examining the discriminative powers of different parts of the retina often consisting of an adjustablesemicircular arm with a fixation point for the eye and variable stations for the visual stimuli
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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perimeter pe·rim·e·ter (pə-rĭm'ĭ-tər)
n.

  1. The outer limits of an area; circumference.
  2. An instrument used to measure field of vision.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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perimeter   (pə-rĭm'ĭ-tər)  Pronunciation Key 
  1. The sum of the lengths of the segments that form the sides of a polygon.
  2. The total length of any closed curve, such as the circumference of a circle.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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