Source : Webster's Revised Unabridged Dictionary (1913)

Totalizator \To"tal*i*za`tor\, n. [From {Totalize}: cf. F.
   totalisateur.]
   A machine for registering and indicating the number and
   nature of bets made on horse races, as in Australia and South
   Africa. Called also {totalizer}.

Source : WordNet®

totalizator
     n : computer that registers bets and divides the total amount
         bet among those who won [syn: {pari-mutuel machine}, {totalizer},
          {totaliser}, {totalisator}]