Al·​i·​oth | \ ˈa-lē-ˌäth How to pronounce Alioth (audio) \

Definition of Alioth

: a variable star of the first magnitude that is seen in the handle of the Big Dipper and is one of the two brightest stars in that constellation Alioth, otherwise known as HD 112185, is a variable star with a very well-defined period, its brightness changing by 0.03 magnitude every 5.09 days.— Shireen Gonzaga, Astronomy, December 1991

called also Epsilon Ursae Majoris

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First Known Use of Alioth

1704, in the meaning defined above

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Cite this Entry

“Alioth.” Dictionary, Merriam-Webster, Accessed 23 Oct. 2021.

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