perimeter
gb/pɚˈɪmətɚ/ us/pɚˈɪmətɚ/
B1
英语
~ 9300
határ, határvonal, perem, kerület, periméter, látótérvizsgáló készülék
名词
B1
1
用法模式：
the perimeter of [a place/shape]
A jogging path runs around the perimeter of the park.
Futóút vezet körbe a park peremén.
Security cameras are placed along the perimeter of the building.
Biztonsági kamerákat helyeztek el az épület körül, a külső határvonal mentén.
The farmer built a fence around the perimeter of his land.
Police set up a perimeter around the crime scene to keep people back.
Trees were planted along the perimeter of the playground to provide shade.
学习者例句
We walked around the perimeter of the lake.
Körbesétáltunk a tó partja mentén.
There is a high wall on the perimeter of the prison.
A börtön területének határán magas fal húzódik.
Lights shine along the perimeter of the parking lot.
They put a fence on the perimeter of the garden.
Guards stand at the perimeter of the base.
常见错误：
Learners sometimes confuse "perimeter" with "parameter". "Perimeter" is about the edge of a place or shape. "Parameter" is a limit or rule in a system or situation. For example, "the perimeter of the field" (edge), but "the parameters of the project" (rules or limits).
含义
outer edge or boundary of an area
搭配
around the perimeter
|along the perimeter
|perimeter fence
|perimeter wall
|the perimeter of the property
|guard the perimeter
近义词
boundary (General word for the line that marks the limit of an area; slightly broader and less visual than "perimeter".)
|
edge (Focuses on the outermost part or side; less strong sense of enclosing an area than "perimeter".)
|
border (Often used for political or regional edges; more geopolitical than the neutral spatial sense of "perimeter".)
反义词
center (Refers to the middle point of an area, which contrasts with its outer edge or perimeter.)
|
interior (Means the inside part of an area, which is the opposite of the surrounding outer edge.)
主题
space
|geometry
|buildings
|security
|core_vocabulary
释义
The outside edge or border around a place or shape.
The outer boundary line or edge that encloses an area or shape, such as the outside edge of a piece of land, a park, a building, or a field.
名词
B1
TECHNICAL
2
kerület
B1
用法模式：
the perimeter of [a geometric shape]
To find the perimeter of the square, multiply one side by four.
A négyzet kerületének meghatározásához szorozd meg az egyik oldal hosszát néggyel.
The teacher asked the students to calculate the perimeter of each triangle.
A tanár arra kérte a diákokat, hogy számítsák ki minden háromszög kerületét.
This worksheet focuses on area on one side and perimeter on the other.
The perimeter of the garden bed is ten meters, so we need ten meters of edging.
In the exam, you must show how you worked out the perimeter of the shape.
学习者例句
We learned how to find the perimeter of a rectangle in math class.
Matekórán megtanultuk, hogyan kell kiszámítani egy téglalap kerületét.
Add all the sides to get the perimeter.
Add össze az összes oldal hosszát, és megkapod a kerületet.
The perimeter of the room is twelve meters.
Please write the perimeter next to each shape.
The homework is to draw three shapes and write their perimeters.
常见错误：
Learners often mix up "perimeter" and "area". "Perimeter" is a length around the outside (measured in units like meters), while "area" is the space inside (measured in square units like square meters). They may also confuse "perimeter" with "diameter" or "radius", which are specific line segments in circles, not the whole distance around.
含义
measurement around a flat shape
搭配
the perimeter of a rectangle
|calculate the perimeter
|find the perimeter
|perimeter formula
|measure the perimeter
|total perimeter
近义词
circumference (Specifically used for the perimeter of a circle; not used for polygons.)
|
outline length (Informal descriptive phrase for the idea; much less standard than "perimeter" in math.)
反义词
area (Refers to the space inside a shape, not the distance around it; often contrasted with perimeter in math.)
主题
math
|education
|science
释义
The total distance around a flat shape, found by adding all the sides.
The total length of the boundary line around a two‑dimensional shape, calculated by adding the lengths of all its sides.
名词
C1
TECHNICAL
3
The patient was tested on an automated perimeter to screen for early glaucoma.
A beteget automata periméterrel vizsgálták, hogy kiszűrjék a korai glaukómát.
Modern perimeters can detect subtle visual field defects that were previously missed.
A modern periméterek olyan enyhe látótérkieséseket is ki tudnak mutatni, amelyeket korábban nem észleltek.
The clinic recently upgraded its perimeter to a faster, more accurate model.
Visual field testing with a perimeter is recommended for patients on long-term hydroxychloroquine therapy.
The technician adjusted the height of the perimeter before starting the test.
学习者例句
At the eye clinic, I sat in front of a perimeter for a vision test.
A szemészeten egy látótérvizsgáló készülék elé ültem a látásvizsgálathoz.
The doctor used a perimeter to check my side vision.
Az orvos periméterrel ellenőrizte a perifériás látásomat.
The new perimeter in the hospital is very modern.
You press a button when you see a light in the perimeter.
The nurse cleaned the perimeter before the next patient.
含义
device for measuring visual field
搭配
automated perimeter
|static perimeter
|Goldmann perimeter
|visual field perimeter
|perimeter testing
|perimetry with a perimeter
近义词
visual field analyzer (A broader technical term; refers to the same type of device but is more descriptive and modern-clinical.)
反义词
ophthalmoscope (Not a strict logical opposite, but a contrasting eye instrument used to look inside the eye rather than measure the visual field.)
主题
medicine
|health
|vision
|science
释义
A special machine in an eye clinic that checks how wide you can see and if there are any blind spots.
A medical instrument used in eye examinations to measure the extent and sensitivity of a person’s visual field by presenting visual stimuli at different positions.
语法
词典原形
perimeter
IPA
GB/pɚˈɪmətɚ/
US/pɚˈɪmətɚ/
音节与重音
peri - met - er （3 个音节）
Stress on 1st syllable (peri)
词形变化
Noun
- Base: perimeter
- Plural: perimeters
词族
Forms
perimeters
noun
Related words
outline
noun B1
circumference
noun B2
Advanced or less common
perimetric
adjective
相关表达
around the perimeter
1/ɚˈaʊnd ðə pɚˈɪmətɚ/
fixed phrase
following the outer edge of an area
Along the outside edge of a place or shape.
例句
- Benches are placed around the perimeter of the court for the players.
- A narrow path runs around the perimeter of the property.
- There are security lights installed around the perimeter of the warehouse.
perimeter fence
1/pɚˈɪmətɚ fˈɛns/
fixed phrase
fence along an area’s outer edge
A fence that goes all the way around the outside edge of a place.
例句
- The factory is surrounded by a high perimeter fence.
- They installed a new perimeter fence to keep animals off the runway.
- The prison’s perimeter fence is topped with razor wire.
perimeter security
1/pɚˈɪmətɚ sɪkjˈʊɹɪti/
fixed phrase
security at an area’s outer edge
Protection systems at the outside edge of a place, such as fences, cameras, and guards.
例句
- The airport has increased its perimeter security after the recent incidents.
- Good perimeter security can prevent intruders from reaching the building itself.
- They invested in better lighting as part of their perimeter security upgrade.
secure the perimeter
1/sɪkjˈʊɹ ðə pɚˈɪmətɚ/
fixed phrase
protect the outer boundary of an area
To guard the outer edge of a place so that no one can enter or leave without permission.
例句
- The soldiers were ordered to secure the perimeter before nightfall.
- Police moved in to secure the perimeter of the stadium after the threat.
- Event staff will secure the perimeter to stop people coming in without tickets.
walk the perimeter
1/wˈɔk ðə pɚˈɪmətɚ/
fixed phrase
walk along an area’s outer edge
To walk all the way around the outside edge of a place.
例句
- The guard walks the perimeter every hour.
- We decided to walk the perimeter of the park to see how big it was.
- Engineers walk the perimeter of the site each morning to check for problems.