Source : Webster's Revised Unabridged Dictionary (1913)

Counter \Coun"ter\, n.

   {Over the counter} (Stock Exchanges), in an office; -- said
      of business so done, as distinguished from that done at an
      exchange. [Cant] Counterglow \Coun"ter*glow`\, n.
   (Astron.)
   An exceedingly faint roundish or somewhat oblong nebulous
   light near the ecliptic and opposite the sun, best seen
   during September and October, when in the constellations
   Sagittarius and Pisces. Its cause is not yet understood.
   Called also {Gegenschein}.

Source : WordNet®

counterglow
     n : a faint spot of light in the night sky that appears directly
         opposite the position of the sun; a reflection of
         sunlight by micrometeoric material in space [syn: {gegenschein}]