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Inherited from Middle English induction, from Old French induction, from Latin inductiō, from indūcō (I lead). By surface analysis, induct +‎ -tion or induce +‎ -tion.


  • IPA(key): /ɪnˈdʌkʃən/
  • Rhymes: -ʌkʃən
  • (file)


induction (countable and uncountable, plural inductions)

  1. An act of inducting.
    1. A formal ceremony in which a person is appointed to an office or into military service.
    2. The process of showing a newcomer around a place where they will work or study.
  2. An act of inducing.
    • 2002, Gilbert S. Banker & Christopher T. Rhodes, Modern Pharmaceutics, 4th edition, Informa Health Care, →ISBN, page 699:
      One of the first examples of the immunogenicity of recombinantly derived antibodies was with murine anti-CD3 monoclonal antibody (OKT3) used in the induction of immunosupression after organ transplantation.
    1. (physics) Generation of an electric current by a varying magnetic field.
    2. (logic) Derivation of general principles from specific instances.
    3. (mathematics) A method of proof of a theorem by first proving it for a specific case (often an integer; usually 0 or 1) and showing that, if it is true for one case then it must be true for the next.
    4. (theater) Use of rumors to twist and complicate the plot of a play or to narrate in a way that does not have to state truth nor fact within the play.
    5. (biology) In developmental biology, the development of a feature from part of a formerly homogenous field of cells in response to a morphogen whose source determines the feature's position and extent.
    6. (mechanical engineering) The delivery of air to the cylinders of an internal combustion piston engine.
  3. (medicine) The process of inducing the birth process.
  4. (obsolete) An introduction.


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From Latin inductio.


induction f (plural inductions)

  1. induction

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