Arcturus

Borrowed from Latin Arctūrus.

• IPA^(key): /ɑɹkˈtjʊəɹəs/

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Arcturus

1. (astronomy) A bright yellow-orange star in the constellation Boötes; Alpha (α) Boötis. It is the fourth-brightest star in the night sky.
   • 2008, BioWare, Mass Effect, Redwood City: Electronic Arts, →ISBN, →OCLC, PC, scene: Stations: Arcturus Station Codex entry:

     When humanity activated the Charon Mass Relay in 2149, it led to Arcturus, 36 light years from Sol, Earth's sun. Arcturus is the third brightest star seen from Earth. It is an ancient red giant from the generation born before Sol.

• Arcturian

Derived from Ancient Greek Ἀρκτοῦρος (Arktoûros), from ἄρκτος (árktos, “bear”) +‎ οὖρος (oûros, “guard”).

• (Classical Latin) IPA^(key): [arkˈtuː.rʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [arkˈt̪uː.rus]

Arctūrus m (genitive Arctūrī); second declension

1. the star Arcturus
2. the constellation Boötes

   Synonym: Bootes

Second-declension noun.

• arctos

Arcturus m

1. alternative form of Arturo