accumulator

/əˈkjuːmjəˌleɪtər/
noun
  1. A person or thing that collects or gathers things over time.
    • She is a known accumulator of rare books.
    • The vacuum cleaner acts as an accumulator of dust and dirt.
    • My grandfather was an accumulator of old stamps and coins.
  2. A type of rechargeable battery or device that stores electrical energy.
    • The car's accumulator needs to be replaced after five years.
    • The backup power system relies on a large accumulator.
    • Solar panels charge an accumulator for use at night.
  3. A bet that combines multiple selections, where the winnings from each are rolled onto the next.
    • She lost her accumulator when the last team lost.
    • Winning an accumulator can pay out a lot, but it's risky.
    • He placed an accumulator on four football matches.
What does "accumulator" mean? | whatsthatwordmean | whatsthatwordmean