con·duc·tor 
/kənˈdʌktɚ/ noun
plural con·duc·tors /kənˈdʌktɚ/ noun [count] 1 : a person who stands in front of people while they sing or play musical instruments and directs their performance 2 : a person who collects money or tickets from passengers on a train or bus —called also (Brit) guard 3 : a material or object that allows electricity or heat to move through it
▪ Metal is a good conductor of electricity.
▪ Metal is a good conductor of electricity.
