perimeter

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++

Related topics: Shapes, patterns, Maths

pe·rim·e·ter /pəˈrɪmɪtə $ -ər/ noun [countable]  1  EDGEthe border around an enclosed area such as a military camp 〔军营等地的〕四周，周围，周边，边缘perimeter of the perimeter of the airfield 机场的四周perimeter fence/wall A mine blew a hole in the perimeter wall. 地雷把围墙炸出了一个洞。► see thesaurus at edge2  MBthe whole length of the border around an area or shape 周长perimeter of Calculate the perimeter of the rectangle. 计算这个长方形的周长。 → circumference

Examples from the Corpus

perimeter• a perimeter 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.• A secure perimeter fence should be at least two metres high.• 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.• Security guards patrol the perimeter.• When the nine pins were in place, Brown joined up the perimeter of the area they bounded.• the perimeter of the airfieldperimeter fence/wall• Three men wearing balaclava-type masks dragged him to a perimeter fence where the attack took place.• 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.• There was no exit in the perimeter fence and the gates in the side fence were locked.• Keeping the perimeter fence a few yards away on his left, Angel One loped silently along until he reached its north-western limit.• Centred in East Anglia, the Snowball Campaign involved a symbolic cutting of the perimeter fence at air-force bases around the country.• His eyes roved to the perimeter fences where the lights still shone as if in defiance of the coming day.Origin perimeter (1500-1600) French périmètre, from Latin, from Greek, from peri- (PERICARDIUM) + metron “measure”

pe·rim·e·ter nounChineseSyllable  

the military enclosed such as Corpus border around an area a

perimeter
pe‧rim‧e‧ter /pəˈrɪmətə, pəˈrɪmɪtə $ -ər/ noun [countable]1. the border around an enclosed area such as a military camp
    perimeter of
    the perimeter of the airfield
    perimeter fence/wall
    A mine blew a hole in the perimeter wall.
2. the whole length of the border around an area or shape
    perimeter of
    Calculate the perimeter of the rectangle.
⇨ circumference
     

THESAURUS

   ▪ edge 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
   ▪ side 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.
   ▪ rim 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.
   ▪ margin 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.
   ▪ hem 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.
   ▪ kerb 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.
   ▪ outskirts the areas of a city that are furthest away from the centre: The new station was built on the outskirts of the city.
   ▪ perimeter 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.

per·im·eterBrE /pəˈrɪmɪtə(r)/ 🔊NAmE /pəˈrɪmɪtər/ 🔊 nounthe outside edge of an area of land （土地的）外缘，边缘◆Guards patrol the perimeter of the estate. 保安人员在庄园四周巡逻。🔊🔊◆a perimeter fence/track/wall 围绕四周的栅栏／小径／墙(mathematics 数学) the total length of the outside edge of an area or a shape 周长  ➡  compare circumference