The Collaborative International Dictionary
Jar \Jar\ (j[aum]r), n. [F. jarre, Sp. jarra, from Ar. jarrah ewer; cf. Pers. jarrah.]
A deep, broad-mouthed vessel of earthenware or glass, for holding fruit, preserves, etc., or for ornamental purposes; as, a jar of honey; a rose jar.
--Dryden.-
The measure of what is contained in a jar; as, a jar of oil; a jar of preserves.
Bell jar, Leyden jar. See in the Vocabulary.
Leyden jar \Ley"den jar"\ (l[imac]"d'n j[aum]r"; 277) Leyden phial \Ley"den phi"al\ (f[imac]"al).n. (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.
Douglas Harper's Etymology Dictionary
1755, phial used for accumulating and storing static electricity, from Leyden (modern Leiden), city in Holland; so called because it was first described (in 1746) by physicist Pieter van Musschenbroek of Leyden (1692-1761). The place name is said to be from Germanic *leitha- "canal."
Wikipedia
A Leyden jar, or Leiden jar, is a device that "stores" static electricity between two electrodes on the inside and outside of a glass jar. A Leyden jar typically consists of a glass jar with metal foil cemented to the inside and the outside surfaces, and a metal terminal projecting vertically through the jar lid to make contact with the inner foil. It was the original form of a capacitor (originally known as a "condenser").
It was invented independently by German cleric Ewald Georg von Kleist on 11 October 1745 and by Dutch scientist Pieter van Musschenbroek of Leiden (Leyden) in 1745–1746. The invention was named for the city.
The Leyden jar was used to conduct many early experiments in electricity, and its discovery was of fundamental importance in the study of electrostatics. The Leyden jar was the first means of storing an electric charge which then could be discharged at the experimenter's will. Leyden jars are still used in education to demonstrate the principles of electrostatics.
Usage examples of "leyden jar".
This can be done cata-strophically in the form of a lightning bolt, or on a much smaller scale in the form of a Leyden jar discharge.
Jason suggested to the oldster, who was now pointing to the ball on top of the Leyden jar.
The Leyden jar brought electrical effects of quite unexpected intensity within reach.
Not less than three professors invented the famous Leyden Jar in the year 1795.
It seemed as though, by some nameless, interior volition, he would fain have shocked into them the same fiery emotion accumulated within the Leyden jar of his own magnetic life.
A few days ago Professor Zircon saw me come into the lab, so he charged a Leyden jar--that's a jar that stores electricity.
The Leyden Jar, as the storage vessel soon became known, was an early form of electrical capacitor.
Discovered accidentally by the Dutch physicist Pieter van Musschenbroek in 1746, and also by the German inventor Ewald Georg von Kleist in 1745, a Leyden jar is a sealed glass container used for storing what?
The sand spun faster, the sound arid and dry, making him think of static electricity, of an experiment they had done in science last year with a Leyden jar.
It works like a storage battery and a Leyden jar, only different, and more so.