Learn how to say Accumulators correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word accumulator:
a person or thing that accumulates, in particular:
an accumulator of capital
British a large rechargeable electric cell.
British a bet placed on a series of races (or other events), the winnings and stake from each being placed on the next:
an eight-horse accumulator
Computing a register used to contain the results of an arithmetical or logical operation.