D defs.my
Entry 1 sense Webster, 1913

Tesla coil

/tĕs'-lə koil/ · Tes·la coil · IPA
01 A transformer without iron, for high frequency alternating or oscillating currents; an oscillation transformer.
  1. 1.
    A transformer without iron, for high frequency alternating or oscillating currents; an oscillation transformer.(Elec.)