'Spark coil' definitions:
Definition of 'spark coil'
From: WordNet
noun
An induction coil used to create sparks
Definition of 'Spark coil'
From: GCIDE
- Spark coil \Spark coil\ (Elec.) (a) An induction coil used for producing sparks, esp. in an internal-combustion engine, wireless telegraph apparatus, etc. (b) A self-induction coil used to increase the spark in an electric gas-lighting apparatus. [Webster 1913 Suppl.]