the bright star Sirius, in Canis Major.
the bright star Procyon, in Canis Minor.
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How to use Dog Star in a sentence
The wild beasts are driven out of these places, at the time of the rising of the dog-star, by large gnats.
By the rising of the Pleiades, denoting the beginning of Summer, and by that of the Dog-star, the declination thereof.The Works of Sir Thomas Browne (Volume 2 of 3) | Thomas Browne
Her tanned hide braves the heats of the dog-star, and, in the evening, she arrives as fresh as if she had just risen from bed.
The star Sirius—the Dog Star, it's called—it moved a good sixty degrees, then stopped dead!To Remember Charlie By | Roger Dee
An irregularity of motion resembling that of Sirius has been detected with regard to Procyon, the lesser dog-star.The Astronomy of Milton's 'Paradise Lost' | Thomas Orchard
British Dictionary definitions for Dog Star
the Dog Star another name for Sirius
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