n.
1.the person who leads a musical group
2.a device designed to transmit electricity, heat, etc.
3.a substance that readily conducts e.g. electricity and heat
4.the person who collects fares on a public conveyance
Idiom of the Day
prime mover
the force or person that starts something
The group of executives were the prime movers behind the decision to close the factory in our city.