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Sirius

Pronunciation: /ˈsɪrɪəs/

Astronomy
Definition of Sirius
  • the brightest star in the sky, south of the celestial equator in the constellation Canis Major. It is a binary star with a dim companion, which is a white dwarf. Also called Dog Star.

Origin:

Latin, from Greek seirios astēr 'scorching star'

Sirius in other Oxford dictionaries

Definition of Sirius in the US English dictionary
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