perimeterpe‧rim‧e‧ter /pəˈrɪmɪtə $ -ər/ noun [countable] 
the perimeter of the airfieldperimeter fence/wall A mine blew a hole in the perimeter wall.► see thesaurus at edge2the whole length of the border around an area or shapeperimeter of Calculate the perimeter of the rectangle. → circumference
WORD ORIGINperimeter
Origin:
1500-1600 French périmètre, from Latin, from Greek, from peri- ( ➔ PERICARDIUM) + metron ‘measure’EXAMPLES FROM OTHER DICTIONARIES
- a perimeter fence
- A secure perimeter fence should be at least two metres high.
- Security guards patrol the perimeter.
- the perimeter of the airfield
- Adjust the starting point so that you avoid a very narrow margin at the perimeter.
- But the perimeter was small and surrounded by forest.
- By the year 2001 the tracks will circle the perimeter of the short-term parking garage roof in the middle of the loop.
- The men ate in a large tent outside the perimeter of the fence.
- The road continues past the buildings and after ¾ mile the trail runs off through the trees to the forest perimeter.
- We had dug in that night on perimeter, and it started raining.
- When the nine pins were in place, Brown joined up the perimeter of the area they bounded.
THESAURUS
the part of something that is furthest from its centre or nearest the place where it ends: · He got up quickly, knocking his plate off the edge of the table.· the outer edge of the village
the part of something that is near its left or right edge: · On the left side of the garden there was an old stone wall.· They parked by the side of the road.
the edge of something circular, especially the top of a cup or glass, or the outside edge of a pair of glasses: · a white cup with a gold rim· She was looking at me over the rim of her spectacles.
the empty space at the side of a page that has writing on it: · My teacher had marked my essay and made some comments in the margin.· Leave wide margins on both sides of the page.
the edge of a piece of cloth that is turned under and stitched down, especially the lower edge of a skirt, trousers etc: · If you want the dress a bit shorter, I can easily turn up the hem.
British English, curb American English the edge of the pavement (=raised path) at the side of a road: · A big black car was parked at the kerb.
the areas of a city that are furthest away from the centre: · The new station was built on the outskirts of the city.
the outside edge around an enclosed area of land such as a military camp or a prison: · Security guards patrol the perimeter night and day.
Longman Language Activatorthe edge of a country, place or area of land the part of a town, city etc that is farthest from the centre: on the edge (of): · My uncle's house is on the edge of town, near the airport.· Gretel lives in a simple cottage on the edge of the forest.
the areas of a city furthest away from the centre: on the outskirts (of): · Her parents lived in a big house on the outskirts of Manchester.· We stayed on the outskirts of the capital.the outskirts of something: · We heard gunshots as we drove through the outskirts of the city.
the official line that separates two countries, or the area of land near this line: the Italian/Brazilian/Nigerian etc border (=the border between Italy, Brazil etc and another country): · Isn't Manto near the Italian border?· Jeumont is a small town on the French-Belgian border.cross the border: · Refugees have been warned not to attempt to cross the border.on the border (with something): · The talks were held in the northeastern state of Nuevo Leon, on the border with the US.the border with (=the border separating one country from another): · It is a mountainous region, occupying a large area near the border with Nepal.border town/area/patrol: · We spent the night in, a miserable little border town.border dispute (=arguments and fighting between countries about where a border should be): · Fighting in border disputes has killed at least 25 people.
especially British the border of a country, where people cross from one country to another: · Many of the cars crossing the frontier were stopped and searched.· They settled in Ronco, a picturesque village near the Italian frontier.frontier post (=place where soldiers guard a border): · He was questioned by soldiers at a frontier post.
the official line that marks the edge of an area of land, for example of a farm or a part of a country: · A fence marks the property's boundaries.boundary of: · the easternmost boundary of Greater Manchesterboundary between: · The Mississippi River forms a natural boundary between Iowa and Illinois.
the outside edge around an enclosed area of land such as a military camp or a prison: · Security guards patrol the perimeter.· the perimeter of the airfieldperimeter fence/wall/road etc (=one that goes around the perimeter): · A secure perimeter fence should be at least two metres high.
WORD SETSabacus, nounalgebra, nounangle, nounarc, nounarea, nounarithmetic, nounarithmetic, adjectivearithmetic progression, nounaxis, nounbar chart, nounbar graph, nounbase, nounbinomial, nounbisect, verbBoolean, adjectiveC, nouncalculator, nouncalculus, nouncanonical, adjectivechord, nouncipher, nouncircumference, nouncircumscribe, verbcompass, nouncomplementary, adjectivecomputation, nouncompute, verbconcentric, adjectivecone, nouncongruent, adjectiveconical, adjectiveconstant, nouncontain, verbcoordinate, nouncoordinate, adjectivecos, cosine, nouncube, nouncubic, adjectivecurvature, nouncurve, nouncut, verbdeci-, prefixdeviation, noundiagonal, adjectivediameter, noundifferential calculus, noundigit, noundimension, noundomain, nouneccentric, adjectiveellipse, nounelliptical, adjectiveequal, adjectiveequal, verbequals sign, nounequation, nounequilateral triangle, nounexponential, adjectiveexpress, verbexpression, nounface, nounfigure, nounflow chart, nounformula, nounfraction, nounfractional, adjectivefunction, noungeometric, adjectivegeometry, noungraph, noungraphically, adverbgraph paper, noungrid, nounHCF, helix, nounheptagon, nounhexagon, nounhistogram, nounhypotenuse, nounimperial, adjectiveimproper fraction, nouninfinity, nouninformation theory, nouninnumerate, adjectiveinto, prepositioninverse, adjectiveisosceles triangle, nounline graph, log, nounlogarithm, nounlong division, nounlozenge, nounmath, nounmathematical, adjectivemathematician, nounmathematics, nounmatrix, nounmean, adjectivemedian, nounmedian, adjectivemetric, adjectiveminus, prepositionminus, nounminus, adjectiveminus sign, nounminute, nounmultiplication, nounmultiplication sign, nounmultiplication table, nounmultiply, verbN, nounnumber, nounnumerate, adjectivenumeration, nounoblong, adjectiveobtuse angle, nounoctagon, nounoval, nounparabola, nounparallel, adjectiveparallelogram, nounpentagon, nounpercentage, nounperimeter, nounperpendicular, nounpi, nounpictogram, nounpie chart, nounplane, nounplane geometry, nounplus, prepositionplus, nounplus, adjectiveplus sign, nounpolygon, nounpolyhedron, nounpower, nounprism, nounprobability, nounproof, nounproportion, nounproposition, nounprotractor, nounquadrangle, nounquadrant, nounquadratic equation, nounquadri-, prefixquadrilateral, nounradius, nounratio, nounrectangle, nounrectilinear, adjectiverecur, verbrhombus, nounright angle, nounright-angled triangle, nounroot, nounruler, nounscale, nounscalene triangle, nounscatter diagram, section, nounsegment, nounsemicircle, nounset square, nounsine, nounslide rule, nounsolid, adjectivesolid, nounsolution, nounsolve, verbsphere, nounsquare, adjectivesquare, nounsquare, verbsquare, adverbsquarely, adverbsquare root, nounsubset, nounsubtract, verbsubtraction, nounsum, nounsurface area, nounsymmetrical, adjectivesymmetry, nountangent, nounterm, nountheorem, nounthreefold, adjectivetimes, prepositiontrapezium, nountriangle, nountrigonometry, nountwo-dimensional, adjectivevalue, nounvariable, nounvector, nounVenn diagram, nounvertex, nounvertical, adjectivevolume, nounwork, verbX, nounx-axis, nouny-axis, noun
COLLOCATIONS FROM THE ENTRY A mine blew a hole in the perimeter wall.COLLOCATIONS FROM THE CORPUSADJECTIVE
1the border around an enclosed area such as a military campperimeter of A mine blew a hole in the perimeter wall.· This is a one metre band marked inside the outer perimeter.· The outer perimeter carries a raised ridge.
NOUN· The inner Zones 1 and 2 are enclosed by a 19-mile perimeter fence.
· She too looks like a retired person, retired from the turbulence beyond the perimeter wall.
VERB· Letters and numbers set at random around its perimeter and an upended wine glass in the centre.· They set up a perimeter on the white sand, went swimming, dug in deep for the night.· She set off round the perimeter of the vast doorway, looking for anything that resembled a control panel.· The agents backed off, setting up an armed perimeter around the house.· Several civilian employees at Cu Chi were later found dead in the barbed wire set out around the perimeter.· We got on the ground and set up a perimeter.· Late in the afternoon they set up a perimeter near the coast.· After several hours, everything quieted down, and we set up a perimeter again.
the perimeter of the airfieldperimeter fence/wall A mine blew a hole in the perimeter wall.► see thesaurus at edge2the whole length of the border around an area or shapeperimeter of Calculate the perimeter of the rectangle. → circumference