Definition of Sirius

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< siriasis

sirloin >

Sir·i·us

s) KEY

NOUN:

A star in the constellation Canis Major, the brightest star in the sky, approximately 8.6 light-years distant from Earth. Also called Dog Star , Sothis .

ETYMOLOGY:
Latin Srius, from Greek Seirios, from seirios, burning

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The American Heritage® Dictionary of the English Language, Fourth Edition.
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