circumpolar

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

adjective (of a celestial body) continually visible above the horizon during the entire 360 degrees of daily travel
adjective located or found throughout a polar region

From circum- + polar.

He is mostly found in the circumpolar seas. — Moby Dick; Or, The Whale, Herman Melville
CASSIOPEIAS CHAIRE, a circumpolar constellation having a fancied resemblance to a chair. — Spenser's The Faerie Queene, Book I, Edmund Spenser
At the southern zenith glittered the circumpolar constellations, and above all the Southern Cross, which some days before the engineer had greeted on the summit of Mount Franklin. — The Mysterious Island, Jules Verne

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