PCB may refer to: Polychlorinated biphenyls, a class of organic compounds and persistent environmental pollutants Pakistan Cricket Board, the association responsible for all major levels of cricket played in Pakistan Technology and computing Printed circuit board, a common type of circuit board PCBoard, a bulletin board system software Plenum Chamber Burning, a process similar to afterburning that was planned to be used on the canceled Bristol Siddeley BS100 jet engine Power circuit break… (More on Pcb)