WordNet
primary coil
n. coil forming the part of an electrical circuit such that changing current in it induces a current in a neighboring circuit; "current through the primary coil induces current in the secondary coil" [syn: primary winding, primary]
Usage examples of "primary coil".
The primary coil drew its current from a small generator, which in turn could be activated by the 2-peak hypercom signal.
When I desired to ascertain the origin of the transmitted impulse, each diagonally situated pair was put in series with a primary coil energizing the detector circuit.