leyden jar

3 definitions found

leyden jar - Collaborative International Dictionary of English v.0.48 :

  Jar \Jar\ (j[aum]r), n. [F. jarre, Sp. jarra, from Ar. jarrah
     ewer; cf. Pers. jarrah.]
     1. 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.
        [1913 Webster]
  
     2. The measure of what is contained in a jar; as, a jar of
        oil; a jar of preserves.
        [1913 Webster]
  
     Bell jar, Leyden jar. See in the Vocabulary.
        [1913 Webster]

  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.
     [1913 Webster]

leyden jar - WordNet (r) 2.1 (2005) :

  Leyden jar
      n 1: an electrostatic capacitor of historical interest [syn:
           Leiden jar, Leyden jar]