CONDUCTION n. 3 definitions
Transmission through, or by means of, a conductor; also, conductivity. [The] communication [of heat] from one body to another when they are in contact, or through a homogenous body from particle to particle, constitutes conduction. Amer. Cyc.
CONDUCTIVITY n.
The quality or power of conducting, or of receiving and transmitting, as, the conductivity of a nerve. Thermal conductivity (Physics), the quantity of heat that passes in unit time through unit area of plate whose thickness is unity, when its opposite faces differ in temperature by one degree. J. D. Everett. -- Thermo…
NONCONDUCTOR n.
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.