Nonconductor

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Nonconductor \Non`con*duct"or\, n. (Physics)
     A substance which does not conduct, that is, convey or
     transmit, heat, electricity, sound, vibration, or the like,
     or which transmits them with difficulty; an insulator; as,
     wool is a nonconductor of heat; glass and dry wood are
     nonconductors of electricity.


     [1913 Webster]

From WordNet (r) 2.0 [wn]:

  nonconductor
       n : a material such as glass or porcelain with negligible
           electrical or thermal conductivity [syn: {insulator}, {dielectric}]
           [ant: {conductor}]