a device used in electronic circuits to hold electrical charge, consisting of two conducting plates separated by a nonconducting (dielectric) medium; it is characterized by its capacitance.
An electrical device capable of storing electrical energy in an electrostatic field. [ Capacitor Manufacturers
an electronic component which consists of two charge holding plates separated by a dielectric material. Due to physical properties of electrical charge, a capacitor can store a charge. The magnitude of that charge is called capacitance and measured in ferrads (or more typically microferrads). The dialectric material does not allow electricity to flow from one plate to the other, and various dialectric materials can greatly increase capacitance. Capacitors are integral to alternating current circuits.