noun

1. One who, or that which, accumulates.

   “He is a great accumulator of bad jokes.”

2. A wet-cell storage battery.

   “Looks like it's time to recharge the accumulator again.”

3. (betting) A collective bet on successive events, with both stake and winnings being carried forward to accumulate progressively.

Synonyms: collector, parlay, share forward accumulator, shock absorber