. (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. ]
. (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. ]