'Conductivity' definitions:

Definition of 'conductivity'

From: WordNet
noun
The transmission of heat or electricity or sound [syn: conduction, conductivity]

Definition of 'Conductivity'

From: GCIDE
  • Conductivity \Con`duc*tiv"i*ty\ (k[o^]n`d[u^]k*t[i^]v"[i^]*t[y^]), 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]