the act of inducing, bringing about, or causing: induction of the hypnotic state.

the act of inducting; introduction; initiation.

formal installation in an office, benefice, or the like.

Logic. any form of reasoning in which the conclusion, though supported by the premises, does not follow from them necessarily. the process of estimating the validity of observations of part of a class of facts as evidence for a proposition about the whole class. a conclusion reached by this process.

Also called mathematical induction. Mathematics. a method of proving a given property true for a set of numbers by proving it true for 1 and then true for an arbitrary positive integer by assuming the property true for all previous positive integers and applying the principle of mathematical induction.