The Collaborative International Dictionary of English v.0.48:

Short-circuit \Short"-cir`cuit\, v. t. [imp. & p. p.
   Short-circuited; p. pr. & vb. n. Short-circuiting.]
   (Elec.)
   To join, as the electrodes of a battery or dynamo or any two
   points of a circuit, by a conductor of low resistance.
   [1913 Webster]