WordNet (r) 3.0 (2006):

printed circuit
    n 1: computer circuit consisting of an electronic sub-assembly;
         copper conductors are laminated on an insulating board or
         card and circuit components are inserted into holes and dip
         soldered

Moby Thesaurus II by Grady Ward, 1.0:

35 Moby Thesaurus words for "printed circuit":
   amplifier circuit, astable circuit, back-to-back switching circuit,
   break, broken circuit, circuit, circuital field, circuitry,
   closed circuit, complete circuit, coupling circuit, dead circuit,
   equivalent circuit, flip-flop circuit, galvanic circuit,
   hot circuit, lateral circuit, leg, live circuit, loop,
   magnetic circuit, microcircuit, monostable circuit,
   multiple circuit, multiple series, nonsinusoidal circuit, path,
   rectifier circuit, semiconductor circuit, series multiple, short,
   short circuit, thermionic tube circuit, transistor circuit,
   vector field