spark coil

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun An induction coil used to produce a spark, as in an internal-combustion engine.

from the GNU version of the Collaborative International Dictionary of English.

• An induction coil used for producing sparks, esp. in an internal-combustion engine, wireless telegraph apparatus, etc.
• A self-induction coil used to increase the spark in an electric gas-lighting apparatus.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun an induction coil used to create sparks