circumpolar

• Qui se trouve autour d'un pôle (Nord ou Sud) ou qui s'étend dans la région polaire, en particulier en astronomie (étoile qui ne se couche jamais) ou en géographie.

Relating to or located in the region around the North or South Pole.

1. Continually visible above the horizonC2formalscientific

   Describing a celestial body that, from a given latitude, never sets and remains visible throughout its entire daily orbit around the celestial pole.

   circumpolaire (astronomie)

   • In northern Canada, Polaris is a circumpolar star.
   • Many constellations in the far north are circumpolar.
   • The Southern Cross is not circumpolar for most northern observers.

2. Located in a polar regionC1formalscientific

   Found or occurring in the area surrounding the North or South Pole.

   Circumpolaire (situé dans une région polaire)

   • The Arctic fox is a circumpolar species.
   • Circumpolar winds influence the climate of Antarctica.
   • Scientists study circumpolar ecosystems to understand climate change.

   Synonymesantarcticarcticpolar