• (America) IPA: /ˈsɪɹi.əs/
Proper noun
  1. (star) A binary star system in the constellation Canis Major long understood as a single extremely luminous white star, associated in ancient Egypt with the Nile flood and in Greek and Roman culture with the "dog days" of summer.
  • the Dog Star (informal); Alpha Canis Majoris, α Canis Majoris, α CMa (Bayer designation); Canicula (Roman contexts); Sopdet, Sothis (Egyptian contexts); Al Shira (Arab contexts); Blazing Star (uncommon)

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