1. The person who stands DSC on a
podium, in front of an
orchestra, waving a
baton, and beating his
music stand.
2. The person who punches tickets on a train, and says things like, "Next stop, River City, Ioway."
3. science. Antonym of
insulator, a material that allows for the transfer of energy. Due to their single free valence electron, gold, silver, and copper are good conductors.