polar
gb/pˈoʊlɚ/ us/pˈoʊlɚ/
B2
英语
~ 7500
义项
0 个义项
adjective
B2
property
1
relating to the North or South Pole
About places or things in the very far north or south of the world, near the North Pole or South Pole.
用法模式：
polar [region/area/species/environment]
常见错误：
Learners sometimes use "polar" to mean any cold place. Strictly, this sense is about the areas around the North and South Poles, not just cold regions in general.
近义词
Arctic (Usually refers specifically to the North Polar region, while "polar" can refer to either pole.)
|
Antarctic (Usually refers specifically to the South Polar region, while "polar" can refer to either pole.)
反义词
equatorial (Refers to areas around the Earth's equator, the opposite of the far northern or southern polar areas.)
搭配
polar regions
|polar ice caps
|polar climate
|polar bear
|polar seas
|polar expedition
主题
geography
|environment
|science
|nature
例句
- Climate change is transforming the polar regions at an alarming rate.
- The ship was specially built to travel through polar waters.
- Polar research stations operate in almost complete darkness during the winter months.
- The documentary showed polar wildlife struggling with melting sea ice.
- Scientists monitor polar ice caps to measure global warming.
学习者例句
- Polar areas are very far north or south.
- Many people study the weather in polar regions.
- A polar bear lives near the North Pole.
- Some birds fly to polar seas in summer.
- The polar ice is melting fast.
adjective
B2
property
2
extremely cold like the poles
Very, very cold, like the North or South Pole.
用法模式：
polar [air/wind/weather/night]
常见错误：
Learners may confuse "polar" with "polarizing" (which means causing strong disagreement). "Polar" in this sense only describes very cold conditions.
近义词
freezing (More common in everyday speech; "polar" often sounds stronger or more dramatic.)
|
frigid (Very similar strength; "frigid" is slightly more formal or literary.)
反义词
balmy (Describes pleasantly warm weather, the opposite of extremely cold conditions.)
搭配
polar air mass
|polar wind
|polar conditions
|polar chill
|almost polar outside
|polar temperatures
主题
weather
|daily_life
|nature
例句
- A blast of polar air moved down from the north and covered the city in snow.
- We woke up to polar temperatures and frozen pipes.
- The wind was absolutely polar on the mountain ridge.
- She pulled her coat tighter against the polar night air.
- Fans braved almost polar conditions to watch the game.
学习者例句
- The wind today feels polar.
- We had to stay inside because it was polar outside.
- The hikers were not ready for the polar cold.
- After sunset, the beach suddenly felt polar.
- They wore heavy coats in the polar wind.
adjective
C1
property
3
completely opposite or extreme
Describes things that are totally different from each other.
用法模式：
polar [views/opinions/positions]
常见错误：
Learners may think "polar" here always needs the word "opposites". It is most common in the phrase "polar opposites", but it can also modify other nouns like "views" or "positions" to mean extremely different.
近义词
opposite (General word for being different in direction or quality; "polar" emphasizes complete or extreme difference.)
|
diametrically opposed (Formal phrase that, like "polar", stresses total opposition.)
反义词
similar (Indicates things are alike, the contrast of being at opposite extremes.)
搭配
polar opposites
|polar opposite
|polar extremes
|polar viewpoints
|polar positions
|polar ends of the spectrum
主题
abstract
|emotions
|politics
|core_vocabulary
例句
- Their views on education are polar opposites.
- The two candidates represent polar positions on climate policy.
- Our personalities are almost polar, but we still get along.
- These two reports come to polar conclusions about the same data.
- She enjoys the polar experiences of city life and living off-grid.
学习者例句
- My sister and I are polar opposites.
- The two plans are polar ideas.
- These two movies give polar messages.
- Their opinions on money are polar.
- The results of the studies are polar.
adjective
technical
C1
property
4
having separated electric charges
Describes a molecule or chemical bond where electric charge is not shared equally, so one end is more positive and the other more negative.
用法模式：
polar [molecule/bond/solvent/group]
常见错误：
Learners may mix up "polar" and "ionic". While many ionic compounds interact strongly with polar substances, "ionic" refers to charged ions, and "polar" refers to uneven charge inside a molecule or bond.
近义词
charged (General word for having electrical charge; "polar" specifically refers to unequal charge distribution within a molecule or bond.)
反义词
nonpolar (Describes molecules or bonds without significant separation of charge, the technical opposite of polar in chemistry.)
搭配
polar molecule
|polar bond
|polar solvent
|polar covalent bond
|highly polar
|polar functional group
主题
science
|chemistry
例句
- Water is a highly polar molecule with a bent shape.
- Salt dissolves easily in polar solvents but not in nonpolar ones.
- The drug contains both polar and nonpolar regions.
- A polar covalent bond forms when electrons are shared unequally.
- The polar nature of the compound affects its boiling point.
学习者例句
- Water is a polar molecule.
- Oil is not polar, so it does not mix with water.
- A polar bond has an uneven share of electrons.
- Polar liquids can dissolve many kinds of salts.
- Some parts of a protein are polar and like water.
adjective
technical
C1
property
5
relating to a mathematical or physical pole
Used in math and science to talk about lines, orbits, or points that are based on a central axis or pole.
用法模式：
polar [coordinates/orbit/axis/angle]
常见错误：
Learners may assume "polar coordinates" are only about cold places. In mathematics, this term is about a way of locating points using a distance and an angle from a center point, not about climate.
近义词
axial (General term for something related to an axis; "polar" is used in specific mathematical and astronomical systems.)
反义词
equatorial (In astronomy, refers to regions or orbits around the equator, contrasting with polar regions or orbits around a pole.)
搭配
polar coordinates
|polar orbit
|polar axis
|polar angle
|polar satellite
|polar diagram
主题
science
|mathematics
|astronomy
例句
- The satellite follows a near polar orbit, passing over both poles on each trip around Earth.
- Students learned how to convert between Cartesian and polar coordinates.
- A polar axis is used as the reference line in this coordinate system.
- The polar angle is measured from the positive x-axis.
- Weather satellites in polar orbits can observe the entire planet over time.
学习者例句
- In math class we studied polar coordinates.
- A polar orbit goes over the North and South Poles.
- We drew a graph using polar axes.
- The scientist showed a map in polar form.
- The satellite moves in a low polar path around Earth.
名词
technical
B2
entity
6
the region around a pole
The very far north or south part of the Earth, near the North Pole or South Pole.
用法模式：
the polar / the polars
常见错误：
This noun use of "polar" is less common in everyday English; learners may expect it only as an adjective. In general English, it is safer to say "the polar regions" instead of just "the polar".
近义词
polar region (More explicit phrase for the same concept; "polar" as a noun is more technical or shorthand in scientific writing.)
反义词
tropics (Refers to the warm regions around the equator, contrasted with the cold polar regions.)
搭配
the polar regions
|the polar areas
|life in the polar
|changes in the polar
|melting in the polar
|protect the polar environment
主题
geography
|environment
|science
|nature
|weather
例句
- Warmer ocean currents are now reaching the polar, accelerating ice loss.
- Species adapted to the polar are under severe threat from climate change.
- Scientists compare data from the tropics and the polar to track global shifts.
- The polar is experiencing record-breaking temperatures.
- New agreements aim to limit fishing in the polar.
学习者例句
- Many animals in the polar are losing their homes.
- People study the polar to understand climate change.
- The polar is much colder than the tropics.
- Ice in the polar is getting thinner.
- The polar has long, dark winters.
语法
词典原形
polar
IPA
GB/pˈoʊlɚ/
US/pˈoʊlɚ/
音节与重音
po - lar （2 个音节）
Stress on 1st syllable (po)
词形变化
Adjective
- Base: polar
Noun
- Base: polar
- Plural: polars
词族
Forms
polars
noun
Core family
Related words
polarizing
adjective
bipolar
adjective
Negative and opposite forms
Advanced or less common
apolar
adjective
polarizable
adjective
相关表达
polar bear plunge
1/pˈoʊlɚ bˈɛɹ plˈʌnd͡ʒ/
idiom
informal
event of jumping into icy water
A special event where people jump into very cold water, often in winter, usually to raise money for charity or for fun.
例句
- Hundreds of people took part in the New Year's polar bear plunge.
- She trained for weeks before doing a polar bear plunge in the lake.
- The charity raised thousands of dollars from the annual polar bear plunge.
polar ice cap
1/pˈoʊlɚ ˈaɪs kˈæp/
fixed phrase
technical
large permanent ice around a pole
A huge, thick layer of ice that covers land or sea near the North Pole or South Pole.
例句
- Scientists are tracking changes in the size of the polar ice cap.
- Melting of the polar ice caps could raise sea levels worldwide.
- The documentary showed satellite images of shrinking polar ice caps.
polar opposites
1/pˈoʊlɚ ˈɑpəzɪts/
fixed phrase
two things that are totally different
Two people, ideas, or things that are completely different from each other.
例句
- Although they are twins, their personalities are polar opposites.
- The two proposals are polar opposites and will lead to very different results.
- Her calm nature and his impatience make them polar opposites.
polar vortex
1/pˈoʊlɚ vˈɔɹtɛks/
fixed phrase
technical
large area of very cold polar air
A huge area of very cold air high above the polar region that sometimes moves south and brings very cold weather.
例句
- A strong polar vortex is expected to bring record low temperatures to the region.
- News reports warned that the polar vortex would make travel dangerous.
- When the polar vortex weakens, icy air can spill into lower latitudes.
polar vortex
1/pˈoʊlɚ vˈɔɹtɛks/
fixed phrase
Cold-air system near the poles
A big system of very cold air near the North or South Pole.
例句
- Forecasters warned that the polar vortex could push temperatures far below normal.
- When the polar vortex weakens, cold air can spill into lower latitudes.
polar opposite
1/pˈoʊlɚ ˈɑpəzɪt/
fixed phrase
a single complete opposite
Something or someone that is completely different from another thing or person.
例句
- They are polar opposites in personality.
- His new job is the polar opposite of his old one.
- This outcome is polar opposite to what we expected.
- This quiet village is the polar opposite of the busy city.
- Her lifestyle now is the polar opposite of what it was ten years ago.