Leyden jar

n.

1.

(Elec.) A glass jar or bottle used to accumulate electricity. It is coated with tin foil, within and without, nearly to its top, and is surmounted by a brass knob which communicates with the inner coating, for the purpose of charging it with electricity. It is so named from having been invented in Leyden, Holland.

Noun

1.

Leyden jar - an electrostatic capacitor of historical interest Synonyms: Leiden jar

capacitance, capacitor, condenser, electrical condenser, Leiden jar