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View synonyms for Sirius

Sirius

[ sir-ee-uhs ]

noun

  1. Astronomy. the Dog Star, the brightest-appearing star in the heavens, located in the constellation Canis Major.
  2. Also Sir·i·us. Classical Mythology.
    1. the dog of Orion.
    2. Icarius' faithful dog, who was changed into a star.


Sirius

/ ˈsɪrɪəs /

noun

  1. the brightest star in the sky after the sun, lying in the constellation Canis Major. It is a binary star whose companion, Sirius B , is a very faint white dwarf. Distance: 8.6 light years Also calledthe Dog StarCaniculaSothis canicularcynic
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


Sirius

/ sĭrē-əs /

  1. The brightest star seen in the night sky. It is in the constellation Canis Major. It is a white main-sequence star on the Hertzsprung-Russell diagram, with an apparent magnitude of −1.5. Sirius is a binary star, and its companion is a white dwarf star referred to as the Pup. Sirius is also known as the Dog Star. Scientific name: Alpha Canis.


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Word History and Origins

Origin of Sirius1

1325–75; Middle English < Latin Sīrius < Greek Seírios
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Word History and Origins

Origin of Sirius1

C14: via Latin from Greek Seirios, of obscure origin
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Example Sentences

Hear Mark Lieberman every Friday on P.O.T.U.S. (Sirius-XM 124) at 6:20 am Eastern Time.

I meet Jones at the New York headquarters of Sirius Satellite Radio.

Starr has been in more than 200 movies and hosts The Mean Bitches Show on Sirius XM.

This morning, David had a conversation with Sirius XM's Pete Dominick.

Above the door is the sign she made for his transition to Sirius radio, which includes the word “Sirius” handwritten 100 times.

Sirius B, its companion, is a different matter; it's a white dwarf.

It has only one one-hundred-twenty-five-thousandths the volume of Sirius A, but it weighs one third as much.

Because of its brilliance and relative proximity to Sol, Sirius is the brightest star in the heavens, as seen from Earth.

Arcot watched the dull red spark of Sirius become increasingly dimmer.

The mighty blaze of Sirius had warmed Pluto, vaporizing its atmosphere and thawing its seas.

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