O·ri·on 
(ō-rīən, ə-rī-)
(ō-rīən, ə-rī-)n.
1. Greek Mythology A giant hunter, pursuer of the Pleiades and lover of Eos, killed by Artemis.
2. A constellation in the celestial equator near Gemini and Taurus, containing the stars Betelgeuse and Rigel.
[Middle English Orioun, from Latin Ōrīōn, from Greek.]