accumulator vs flutter

accumulator

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

  • 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. 

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

  • A register or variable used for holding the intermediate results of a computation or data transfer. 

  • A one way membership function. 

  • One who, or that which, accumulates. 

  • 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). 

  • One who takes two higher degrees simultaneously, to reduce their length of study. 

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

  • A wet-cell storage battery. 

flutter

noun
  • An extremely dangerous divergent oscillation caused by a positive feedback loop between the elastic deformation of an object and the aerodynamic forces acting on it, potentially resulting in rapid structural failure. 

  • A state of agitation. 

  • The rapid variation of signal parameters, such as amplitude, phase, and frequency. 

  • A small bet or risky investment. 

  • The act of fluttering; quick and irregular motion. 

  • A hasty game of cards or similar. 

  • An abnormal rapid pulsation of the heart. 

verb
  • To be in a state of agitation or uncertainty. 

  • To subject to a lie detector test. 

  • Of a winged animal: to flap the wings without flying; to fly with a light flapping of the wings. 

  • To flap or wave quickly but irregularly. 

  • To undergo divergent oscillations (potentially to the point of causing structural failure) due to a positive feedback loop between elastic deformation and aerodynamic forces. 

  • To cause something to flap. 

  • To drive into disorder; to throw into confusion. 

How often have the words accumulator and flutter occurred in a corpus of books? (source: Google Ngram Viewer )