Source : Webster's Revised Unabridged Dictionary (1913)

   {Circulating decimal}. See {Decimal}.

   {Circulating library}, a library whose books are loaned to
      the public, usually at certain fixed rates.

   {Circulating medium}. See {Medium}.

Source : WordNet®

circulating decimal
     n : a decimal with a sequence of digits that repeats itself
         indefinitely [syn: {recurring decimal}, {repeating
         decimal}]