hydraulic accumulator (6)


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


  • (US) IPA(key): /ə.ˈkjum.jə.ˌleɪ.tɚ/
  • (file)


accumulator (plural accumulators)

  1. (literally) One who, or that which, accumulates.
    Synonym: collector
    He is a great accumulator of bad jokes.
  2. (Britain) A wet-cell storage battery.
    Looks like it's time to recharge the accumulator again.
  3. (gambling) A collective bet on successive events, with both stake and winnings being carried forward to accumulate progressively.
    Synonym: parlay
    • 2000, Guinness World Records, Guinness Book of Records 2000, Demco Media (→ISBN)
      The largest payout for a bet on a horse race was $1,627,084 after tax, paid to Britons Anthony Speelman and Nicholas Cowan on their $64 nine-horse accumulator at Santa Anita Racecourse, California, in 1987.
  4. (mechanics) A system of elastic springs for relieving the strain upon a rope, as in deep-sea dredging.
  5. (manufacturing) A vessel containing pressurized hot water ready for release as steam.
  6. (engineering, hydraulics) A container which stores hydraulic power for release, in the form of a pressurized fluid (often suspended within a larger tank of fluid under pressure).
    Synonym: shock absorber
  7. (programming) A register or variable used for holding the intermediate results of a computation or data transfer.
    • 1986, Jules H. Gilder, Apple IIc and IIe Assembly Language, Springer Science & Business Media (→ISBN), page 139:
      The contents of the memory location and accumulator are NOT altered, but the Negative, Zero and Carry flags are conditioned according to the result of the subtraction.
    • 2011, Oliver Sturm, Functional Programming in C#, John Wiley & Sons (→ISBN), page 122:
      The function signature has changed to include the additional parameter accumulator. This parameter, in a way, takes on the job of the return value.
  8. (finance) A derivative contract under which the seller commits to sell shares of an underlying security at a certain strike price, which the buyer is obligated to buy.
    Synonym: share forward accumulator
    • 2014, Jerome Yen, Kin Keung Lai, Emerging Financial Derivatives, Routledge (→ISBN)
      This product was fairly popular among investors in Hong Kong in 2007 considering the market conditions at that time. It is an accumulator of the underlying stock with a contract period of 12 months.
  9. (Britain, education, historical) One who takes two higher degrees simultaneously, to reduce their length of study.
    • 1691–92, Anthony Wood (antiquary), Athenæ Oxonienses
      The first of these two was a compounder, the other who was an accumulator, was lately made provost of Trin. coll. near Dublin, and on the 31st of March 1692 was nominated bish. of Kilmore.
  10. (cryptography) A one way membership function.

Related termsEdit


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.

Further readingEdit


Alternative formsEdit


Borrowed from French accumulateur, from Latin accumulātor. The spelling and pronunciation was subsequently adapted to Latin or English accumulator.


  • IPA(key): /ˌɑ.ky.myˈlaː.tɔr/
  • (file)
  • Hyphenation: ac‧cu‧mu‧la‧tor
  • Rhymes: -aːtɔr


accumulator m (plural accumulatoren)

  1. (dated, now chiefly historical) battery, accumulator
    Synonym: accu

Derived termsEdit




  1. second-person singular future passive imperative of accumulō
  2. third-person singular future passive imperative of accumulō


  • accumulator in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • accumulator in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • accumulator in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette