Source : Webster's Revised Unabridged Dictionary (1913)

Procyon \Pro"cy*on\, n. [L., a constellation which rises before
   the Dog Star, Gr. ?; ? before + ? a dog. ]
   1. (Astron.) A star of the first magnitude in the
      constellation Canis Minor, or the Little Dog.

   2. (Zo["o]l.) A genus of mammals including the raccoon.

Source : WordNet®

Procyon
     n 1: the brightest star in Canis Minor
     2: the type genus of the family Procyonidae: raccoons [syn: {genus
        Procyon}]