polar

• 指与北极或南极有关的；也用来形容性质或特点完全相反的事物。

Relating to the North or South Pole; also used to describe something that is completely opposite in character or nature.

1. Relating to the polesB2formalscientific

   Relating to the North or South Pole of the Earth or another celestial body.

   极地的

   • Polar bears are adapted to life in the Arctic.
   • The polar ice caps are melting due to global warming.
   • Scientists study polar regions to understand climate change.

   同义词antarcticarctic

2. Opposite in natureB2formalscientific

   Used to describe two things that are completely opposite or contrasting.

   截然相反的

   • Their political views are polar opposites.
   • The two characters represent polar extremes of good and evil.
   • The debate highlighted polar positions on the issue.

   同义词antagonisticantipodalantitheticalcontraryopposite

   反义词alikeidenticalsimilar

3. Electrical polarityC1formaltechnical

   Relating to the positive or negative charge of an electrical terminal or magnet.

   极性的

   • Make sure to connect the wires with the correct polar orientation.
   • The battery has a polar terminal that must be matched.
   • A polar magnet has distinct north and south poles.