Source : Webster's Revised Unabridged Dictionary (1913)

Pegasus \Peg"a*sus\, n. [L., fr. Gr. ?.]
   1. (Gr. Myth.) A winged horse fabled to have sprung from the
      body of Medusa when she was slain. He is noted for
      causing, with a blow of his hoof, Hippocrene, the
      inspiring fountain of the Muses, to spring from Mount
      Helicon. On this account he is, in modern times,
      associated with the Muses, and with ideas of poetic
      inspiration.

            Each spurs his jaded Pegasus apace.   --Byron.

   2. (Astron.) A northen constellation near the vernal
      equinoctial point. Its three brightest stars, with the
      brightest star of Andromeda, form the square of Pegasus.

   3. (Zo["o]l.) A genus of small fishes, having large pectoral
      fins, and the body covered with hard, bony plates. Several
      species are known from the East Indies and China.

Source : WordNet®

Pegasus
     n 1: (Greek mythology) immortal winged horse that sprang from the
          blood of the slain Medusa; was tamed by Bellerophon with
          the help of a bridle given him by Athena; as the flying
          horse of the Muses it is a symbol of high-flying
          imagination [syn: {flying horse}]
     2: a constellation in the northern hemisphere near Andromeda
        and Pisces

Source : Free On-Line Dictionary of Computing

Pegasus
     
        1.  A product to support {Internet}
        searches, {electronic mail}, and {Usenet news}.
     
        [Details?  Addesss?]
     
        (1997-07-14)
     
        2.  An {open source} project run by {The Open Group}
        which implements a {Common Information Model} (CIM) Object
        Manager.
     
        {Pegasus Home (http://www.openpegasus.org/)}.
     
        (2003-06-07)