spark-gap
n. மின்விசைப்பொறி தாவும் மின்முனை இடைவௌதநெறி.
Spark gap. (Elec.) Defn: The space filled with air or other dielectric between high potential terminals (as of an electrostatic machine, induction coil, or condenser), through which the discharge passes; the air gap of a jump spark.