1the action or process of inducting someone to a post or organization:induction into membership of a Masonic brotherhood

[usually as modifier] a formal introduction to a new job or position:an induction course

US enlistment into military service.

2the process or action of bringing about or giving rise to something:the induction of malformations by radiation

Medicine the process of bringing on the birth of a baby by artificial means, typically by the use of drugs.

3 Logic the inference of a general law from particular instances:the admission that laws of nature cannot be established by inductionOften contrasted with deduction.

the production of facts to prove a general statement.

(also mathematical induction) Mathematics a means of proving a theorem by showing that if it is true of any particular case it is true of the next case in a series, and then showing that it is indeed true in one particular case.

4the production of an electric or magnetic state by the proximity (without contact) of an electrified or magnetized body.See also magnetic induction.

the production of an electric current in a conductor by varying the magnetic field applied to the conductor.

5the stage of the working cycle of an internal-combustion engine in which the fuel mixture is drawn into the cylinders.