accumulator
Americannoun
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a person or thing that accumulates.
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a register or electric device on an arithmetic machine, as an adding machine, cash register, or digital computer, that receives a number and produces and stores the results of arithmetic operations of the given number with other numbers.
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British. a storage battery or storage cell.
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an apparatus that stores fluid at approximately the working pressure of the hydraulic or pneumatic system in which it will be employed, so that a supply of fluid is always immediately available to the system.
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Machinery. (in a boiler) a vessel for storing hot fluid, ready to flash into steam.
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Hydraulics. a vessel in which air is trapped and compressed by the liquid, thus storing energy to supply liquid under pressure when the demand of the system is greater than the capacity of the pump.
noun
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Also called: battery. storage battery. a rechargeable device for storing electrical energy in the form of chemical energy, consisting of one or more separate secondary cells
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horse racing a collective bet, esp on four or more races, in which the stake and winnings on each successive race are carried forward to become the stake on the next, so that both stakes and winnings accumulate progressively so long as the bet continues to be a winning one
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a register in a computer or calculator used for holding the results of a computation or data transfer
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a location in a computer store in which arithmetical results are produced
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Etymology
Origin of accumulator
1685–95; < Latin accumulātor, equivalent to accumulā ( re ) to heap up ( accumulate ) + -tor -tor
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Bitcoin lost 13%, dragging Coinbase to a record 13th-straight decline and sending bitcoin accumulator Strategy down 19%.
From The Wall Street Journal • Feb. 5, 2026
Most controversially, he conceived of the orgone energy accumulator, a human-sized box, which was banned by the FDA.
From Los Angeles Times • May 10, 2023
"For pregnant women or avid drinkers of black tea, they're going to get more fluoride because it's a hyper accumulator of fluoride."
From Salon • Mar. 17, 2023
In the lexicon of permaculture, comfrey is known as a dynamic accumulator.
From Seattle Times • Sep. 24, 2022
One of the best forms of accumulator consists of a pile of perforated rubber disks, which receive the strain and become compressed in doing so.
From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 7 "Drama" to "Dublin" by Various
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
