Longman Dictionary of Contemporary English homepage

accumulator

 noun
     
Related topics: Computers
ac‧cu‧mu‧la‧tor [countable]
1TD technical a part of a computer that stores numbers
2 especially British English a kind of betting on the results of a series of horse races, by which any money you win from a race is bet on the next race
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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