This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. One that accumulates: an accumulator of old magazines.

n. A register or electric circuit in a calculator or computer, in which the results of arithmetical and logical operations are formed.

n. Chiefly British An automobile storage battery.

n. One who, or that which, accumulates.

n. A wet-cell storage battery.

n. A collective bet on successive events, with both stake and winnings being carried forward to accumulate progressively.

n. A system of elastic springs for relieving the strain upon a rope, as in deep-sea dredging.

n. A vessel containing pressurized hot water ready for release as steam.

n. 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).

n. A register in a calculator or computer used for holding the intermediate results of a computation or data transfer.

n. 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.

n. One who, or that which, accumulates, collects, or amasses.

n. An apparatus by means of which energy or power can be stored, such as the cylinder or tank for storing water for hydraulic elevators, the secondary or storage battery used for accumulating the energy of electrical charges, etc.

n. A system of elastic springs for relieving the strain upon a rope, as in deep-sea dredging.

n. One who or that which gathers, accumulates, or amasses.

n. One who takes university degrees by accumulation (which see).

n. Anything used for collecting and storing energy, etc.

n. In electricity: A condenser (which see). A storage battery (which see, under battery).

n.

n. (computer science) a register that has a built-in adder that adds an input number to the contents of the register

n. a person who is employed to collect payments (as for rent or taxes)

n. a voltaic battery that stores electric charge

"The device will be hooked up to an Iodine Crew Water Container on the station and water will be transferred into an accumulator, which is a plastic bag inside a hard container."

register   

ace in the pot    hydro-pneumatic accumulator   

accumulation    accumulate    accumulative   

collector    parlay    share forward accumulator   

piston    servo    compressor    suction    injector    lube    coolant    ejector    high-pressure    hydraulic