astronomy
: a blue-white star of the third magnitude that is seen in the constellation Ursa Major and is the dimmest star in the Big Dipper
Megrez, the star where the handle joins the bowl, is the faintest member of the Dipper. It is about 81 light-years away.—John Stanley, The Arizona Republic (Phoenix), 25 June 2011
called also Delta Ursae Majoris
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Merriam-Webster unabridged
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