The Collaborative International Dictionary of English v.0.48:
busbar \busbar\, bus-bar \bus-bar\n. an electrical conductor that makes a common connection between several circuits. Syn: busbar, bus. [WordNet 1.5]WordNet (r) 3.0 (2006):
busbar n 1: 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" [syn: busbar, bus]