con·duct·ance \kənˈdəktən(t)s\noun (-s) 1.: the act of conducting : transmission, conveyance 2. a.: capacity or fitness for conducting < neural conductance > b.: conducting power : measure of the readiness with which a given conductor allows an electric current to flow through it : the reciprocal of resistance measured by a unit mho that is the reciprocal of the ohm