Bible Dictionaries
Spark Coil

Webster's Dictionary

(1):

An induction coil, esp. of an internal-combustion engine, wireless telegraph apparatus, etc.

(2):

A self-induction coil used to increase the spark in an electric gas-lighting apparatus.

Bibliography Information
Webster, Noah. Entry for 'Spark Coil'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​s/spark-coil.html. 1828.