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Definition of Sirius
1. Noun. The brightest star in the sky; in Canis Major.
Exact synonyms: Canicula, Dog Star, Sothis
Generic synonyms: Binary, Binary Star, Double Star
Group relationships: Canis Major, Great Dog
Derivative terms: Canicular
Generic synonyms: Binary, Binary Star, Double Star
Group relationships: Canis Major, Great Dog
Derivative terms: Canicular
Definition of Sirius
1. n. The Dog Star. See Dog Star.
Definition of Sirius
1. Proper noun. (star) A bluish-white star in the constellation Canis Major; Alpha (?) Canis Majoris. A vertex of the Winter Triangle and the brightest star in the night sky. It is actually a binary star with a white dwarf companion star. ¹
¹ Source: wiktionary.com
Medical Definition of Sirius
1.