WordNet sense 1 (an electrical phenomenon whereby an electromotive force (EMF) is generated in a closed circuit by a change in the flow of current):

inductance

WordNet sense 2 (a formal entry into an organization or position or office):

initiation, installation

WordNet sense 3 (stimulation that calls up (draws forth) a particular class of behaviors):

elicitation, evocation

WordNet sense 4 (reasoning from detailed facts to general principles):

generalization, generalisation, inductive reasoning

WordNet sense 5 (an act that sets in motion some course of events):

trigger