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late 14c., "advancement toward the grace of God;" also (c.1400) "formal installation of a clergyman," from Old French induction (14c.) or directly from Latin inductionem (nominative inductio) "a leading in, introduction," noun of action from past participle stem of inducere "to lead" (see induce).
As a term in logic (early 15c.) it is from Cicero's use of inductio to translate Greek epagoge "leading to" in Aristotle. Induction starts with known instances and arrives at generalizations; deduction starts from the general principle and arrives at some individual fact. As a term of science, c.1800; military service sense is from 1934, American English.
induction in·duc·tion (ĭn-dŭk'shən)
The process of initiating or increasing the production of an enzyme or other protein at the level of genetic transcription.
The period from the first administration of anesthesia to the establishment of a depth of anesthesia adequate for surgery.
The change in form or shape caused by the action of one tissue of an embryo on adjacent tissues or parts, as by the diffusion of hormones.
A modification imposed upon the offspring by the action of environment on the germ cells of one or both parents.
The generation of electromotive force in a closed circuit by a varying magnetic flux through the circuit.
A process of reasoning that moves from specific instances to predict general principles. (Compare deduction.)