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

conductivity \con`ductiv"ity\
   ko^n`du^kti^v"i^ty^, n.
   the quality or power of conducting, or of receiving and
   transmitting, as heat, electricity, etc.; as, the
   conductivity of a nerve.
   1913 webster

   thermal conductivity physics, the quantity of heat that
      passes in unit time through unit area of a plate whose
      thickness is unity, when its opposite faces differ in
      temperature by one degree.
      1913 webster
see also:
thermal conductivity 

[2] : WordNet (r) 2.0

conductivity
     n : the transmission of heat or electricity or sound syn: conduction
see also:
conduction 

Conductivity >> C Words
Conductivity, definition of term: Conductivity
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