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Definition of Arcturus
1. Noun. The 4th brightest star and the brightest star in the constellation Bootes; 36 light-years from Earth.
Definition of Arcturus
1. n. A fixed star of the first magnitude in the constellation Boötes.
Definition of Arcturus
1. Proper noun. (star) A bright yellow-orange star in the constellation Boötes; Alpha (?) Boötis. It is the third brightest star in the night sky. ¹
¹ Source: wiktionary.com
Medical Definition of Arcturus
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