totalizator
noun
to·tal·iza·tor ˈtō-tᵊl-ə-ˌzā-tər 
variants or totalisator
: pari-mutuel sense 2
Example Sentences
Recent Examples on the Web The sight of the black-on-gold totalizator creeping ever higher is treated with the sort of delight more commonly associated with charity telethons. 
Rory Smith, New York Times, 30 Aug. 2016
Rory Smith, New York Times, 30 Aug. 2016 Word History
First Known Use
1879, in the meaning defined above