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Definition of polar star in English: polar starnoun Astronomy A star at or close to a celestial pole, especially the Pole Star. Alpha Draconis used to be the north polar star Example sentencesExamples - Yes, that's the first thing, like the Big Dipper here, the North polar star.
- These 38 stars were the 36 ‘fundamental stars’ of Maskelyne together with two further polar stars.
- The queen, however, is as constant as the polar star, and it is that continuity, stability and dignity which Britons are now celebrating.
Definition of polar star in US English: polar starnoun Astronomy A star at or close to a celestial pole, especially Polaris. Alpha Draconis used to be the north polar star Example sentencesExamples - Yes, that's the first thing, like the Big Dipper here, the North polar star.
- The queen, however, is as constant as the polar star, and it is that continuity, stability and dignity which Britons are now celebrating.
- These 38 stars were the 36 ‘fundamental stars’ of Maskelyne together with two further polar stars.
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