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]

WordNet (r) 3.0 (2006):

Orion
    n 1: (Greek mythology) a giant Boeotian hunter who pursued the
         Pleiades and was eventually slain by Artemis; was then
         placed in the sky as a constellation
    2: a constellation on the equator to the east of Taurus;
       contains Betelgeuse and Rigel [syn: Orion, Hunter]

Easton's 1897 Bible Dictionary:

Orion
   Heb. Kesil; i.e., "the fool", the name of a constellation (Job
   9:9; 38:31; Amos 5:8) consisting of about eighty stars. The
   Vulgate renders thus, but the LXX. renders by Hesperus, i.e.,
   "the evening-star," Venus. The Orientals "appear to have
   conceived of this constellation under the figure of an impious
   giant bound upon the sky." This giant was, according to
   tradition, Nimrod, the type of the folly that contends against
   God. In Isa. 13:10 the plural form of the Hebrew word is
   rendered "constellations."


U.S. Gazetteer Places (2000):

Orion, IL -- U.S. village in Illinois
   Population (2000):    1713
   Housing Units (2000): 715
   Land area (2000):     0.861204 sq. miles (2.230509 sq. km)
   Water area (2000):    0.000000 sq. miles (0.000000 sq. km)
   Total area (2000):    0.861204 sq. miles (2.230509 sq. km)
   FIPS code:            56601
   Located within:       Illinois (IL), FIPS 17
   Location:             41.353260 N, 90.377229 W
   ZIP Codes (1990):     61273
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Orion, IL
    Orion