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n. The fourth brightest star in the sky and the brightest star in the constellation Boötes, approximately 36 light years from Earth. [Middle English, from Latin Arctūrus, from Greek Arktouros : arktos, bear; see tko- in the Appendix of Indo-European roots + ouros, guard (from its position behind Ursa Major); see wer-3 in the Appendix of Indo-European roots.] |
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