1. devices that store electrical energy, especially rechargeable batteries
Usage: technical
2. people or things that gather and collect items over time
3. devices in machinery that store fluid under pressure
Usage: engineering

Examples

• The solar panels charge the accumulators during the day.
• Electric vehicles rely on powerful accumulators for energy storage.
• She was one of those accumulators who never threw anything away.
• The hydraulic system uses accumulators to maintain steady pressure.
• Old car accumulators need to be disposed of properly.
• Some people are natural accumulators of books and magazines.