From Longman Dictionary of Contemporary Englishparimutuelpar‧i‧mu‧tu‧el /ˌpæriˈmjuːtʃuəl/ noun 1 [uncountable]DGGDSH a system in which the money that people have risked on a horse race is shared between the people who have won parimutuel betting2 [countable] American EnglishDGGDSH a machine used to calculate the amount of money that people can win when they risk it on horse racesOrigin parimutuel (1800-1900) French “mutual bet”