| Noun | 1. | busbar - an electrical conductor that makes a common connection between several circuits; "the busbar in this computer can transmit data either way between any two components of the system" computer, computing device, computing machine, data processor, electronic computer, information processing system - a machine for performing calculations automatically conductor - a device designed to transmit electricity, heat, etc. LAN, local area network - a local computer network for communication between computers; especially a network connecting computers and word processors and other electronic office equipment to create a communication system between offices |