D defs.my
Entry 3 senses Webster, 1913

Conduction

/(kŏn*dŭk"shŭn)/ · Con·duc·tion · IPA /kənˈdʌkʃən/
01 n. The act of leading or guiding.
  1. 1.
    The act of leading or guiding.
  2. 2.
    The act of training up.[Obs.]
  3. 3.
    Transmission through, or by means of, a conductor; also, conductivity.(Physics)
    “[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.