Transformer /(?)/

Trans·form·er

Transformer

n.
  1. One who, or that which, transforms. Specif. (Elec.), an apparatus for producing from a given electrical current another current of different voltage. (Elec.)
  2. a toy consisting of a figure or representation of an object, constructed of interlocking parts in such a way that a series of turning or twisting motions of the parts can transform the object from one type of object to a different type of object, such as from an animal to an automobile.

Phrases & Compounds
Multiple transformer
A transformer connected in multiple or in parallel with the primary circuit.
Parallel transformer
a transformer connected in parallel.