1. plural of alternator; electrical generators that produce alternating current, especially those used in vehicles to charge the battery and power electrical systems
Usage: automotive; electrical engineering

Examples

• The mechanic replaced both alternators in the truck.
• Modern cars rely on alternators to keep their batteries charged.
• The wind farm uses large alternators to generate electricity.
• Faulty alternators can cause dim headlights and dead batteries.
• These alternators produce 12-volt current for the vehicle’s electrical system.
• The shop stocks alternators for most car models.
• Marine alternators are designed to resist corrosion from salt water.