an induction coil used to produce spark discharges
spark coil in American English
an induction coil producing high voltage for a sparking device, as a spark plug
spark coil in American English
noun
Electricity
a coil of many turns of insulated wire on an iron core, used for producing sparks
Word origin
[1895–1900]This word is first recorded in the period 1895–1900. Other words that entered Englishat around the same time include: Marxism, apothecaries' measure, hit-and-run, neon, slapstick