Meaning of ACCUMULATOR in English

noun Date: 1748 one that accumulates: as, a device (as in a hydraulic system) in which a fluid is collected and especially in which it is kept under pressure as a means of storing energy, storage battery , a part (as in a computer) where numbers are totaled or stored

Merriam Webster. Explanatory English dictionary Merriam Webster.      Толковый словарь английского языка Мерриам-Уэбстер.