noun (n)

• an electrical phenomenon whereby an electromotive force (EMF) is generated in a closed circuit by a change in the flow of current(noun.phenomenon)

  Synonym:
  induction
  

  source: wordnet30
• an electrical device (typically a conducting coil) that introduces inductance into a circuit(noun.artifact)

  Synonym:
  inductor
  

  source: wordnet30
• Capacity for induction; the coefficient of self- induction.(noun)

  source: webster1913