capacitor
/kəˈpæsɪtər/
noun
- An electronic component that stores electrical energy in an electric field, used in many devices to smooth power flow or store charge temporarily.
- Old electronics often have large capacitors that can hold a dangerous charge even after unplugging.
- Engineers use capacitors to filter out noise in audio circuits.
- The capacitor in the camera flash stores energy and releases it quickly for a bright light.