Accumulators meaning : One who, or that which, accumulates. A wet-cell storage battery. (betting) A collective bet on successive events, with both stake and winnings being carried forward to accumulate progressively. A system of elastic springs for relieving the strain upon a rope, as in deep-sea dredging. A vessel containing pressurized hot water ready for release as steam. (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). A register or variable used for holding the intermediate results of a computation or data transfer. 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. One who takes two higher degrees simultaneously, to reduce their length of study. A one way membership function.