accumulator

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun a person who is employed to collect payments (as for rent or taxes)
noun a voltaic battery that stores electric charge
noun (computer science) a register that has a built-in adder that adds an input number to the contents of the register

From Latin accumulātor, agent noun of accumulō (“pile up”), accumulate + -or.

Assemblage of accumulator grids 85 64. — Electricity for Boys, James Slough Zerbe
Gigantic racked accumulators huddled in the corners. — The Ultimate Weapon, John W., Jr. (John Wood) Campbell
"The accumulators and the transmitters," said Burl. — The Secret of the Ninth Planet, Donald A. Wollheim

collector, gatherer

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