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TOEFL IELTS BNC: 8620 COCA: 6584

perimeter

Word family 
Related topics: Shapes, patterns, Maths
pe·rim·e·ter /pəˈrɪmɪtə $ -ər/ noun [countableC]  
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 edge
2  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 airfield
perimeter 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 noun
Chinese
Syllable
Corpus
TOEFL IELTS BNC: 8620 COCA: 6584
perimeter

noun

ADJECTIVE | VERB + PERIMETER | PERIMETER + NOUN | PREPOSITION ADJECTIVE➤inner, outer內周長；外周長➤northern, southern, etc.北部、南部等邊緣➤entire整個周邊➤defensive, security環形防線；安全界線➤airport, base機場／基地周邊VERB + PERIMETER➤establish, form, mark建立／形成／標明周邊◇The river marks the eastern perimeter of our land.這條河構成了我們領土的東面邊界。➤defend, guard, secure保衞／護衞／防衞周邊➤patrol, walk沿周邊巡邏／行走➤breach突破周邊防線◇The gunman did not breach the security perimeter around the White House.持槍歹徒沒有突破白宮周圍的安全防線。PERIMETER + NOUN➤fence, fencing, wall圍籬；圍牆➤security周邊安全➤road環繞四周的道路➤defender, player, shooter (all in basketball皆用於籃球) 外線防守隊員／球員／投籃手PREPOSITION➤along the perimeter沿着邊緣◇I lugged my suitcase along the perimeter of the square.我費力地拖着手提箱沿着廣場的邊緣走。➤around the perimeter, round the perimeter (especially BrE) 圍繞周邊◇We walked around the perimeter of the prison.我們繞着監獄周圍走了一圈。➤inside the perimeter, outside the perimeter在界限裏面／外面◇They demonstrated just outside the perimeter of the embassy.他們就在大使館的外面示威。➤on the perimeter在邊緣上◇Many of the offices are located on the perimeter of the site.許多辦公室位於那個地方的周邊。
TOEFL IELTS BNC: 8620 COCA: 6584
perimeter noun
⇨ edge
TOEFL IELTS BNC: 8620 COCA: 6584
perimeter
Fences and boundaries: abuttals, balustrade, barbed wire...
Parts of shapes: centre, circumference, contour...

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