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From The Collaborative International Dictionary of English v.0.48:
Orion \O*ri"on\ ([-o]*r[imac]"[o^]n), n. [L., fr. Gr. 'Wri`wn, orig., a celebrated hunter in the oldest Greek mythology, after whom this constellation was named.] (Astron.) A large and bright constellation on the equator, between the stars Aldebaran and Sirius. It contains a remarkable nebula visible to the naked eye. [1913 Webster] The flaming glories of Orion's belt. --E. Everett. [1913 Webster]