Definify.com
Webster 1913 Edition
Induction
1.
The act or process of inducting or bringing in; introduction; entrance; beginning; commencement.
I know not you; nor am I well pleased to make this time, as the affair now stands, the
induction
of your acquaintance. Beau. & Fl.
These promises are fair, the parties sure,
And our
And our
induction
dull of prosperous hope. Shakespeare
2.
An introduction or introductory scene, as to a play; a preface; a prologue.
[Obs.]
This is but an
The curtains of the tragedy hereafter.
induction
: I will drawThe curtains of the tragedy hereafter.
Massinger.
3.
(Philos.)
The act or process of reasoning from a part to a whole, from particulars to generals, or from the individual to the universal; also, the result or inference so reached.
Induction
is an inference drawn from all the particulars. Sir W. Hamilton.
Induction
is the process by which we conclude that what is true of certain individuals of a class, is true of the whole class, or that what is true at certain times will be true in similar circumstances at all times. J. S. Mill.
4.
The introduction of a clergyman into a benefice, or of an official into a office, with appropriate acts or ceremonies; the giving actual possession of an ecclesiastical living or its temporalities.
5.
(Math.)
A process of demonstration in which a general truth is gathered from an examination of particular cases, one of which is known to be true, the examination being so conducted that each case is made to depend on the preceding one; – called also
successive induction
. 6.
(Physics)
The property by which one body, having electrical or magnetic polarity, causes or induces it in another body without direct contact; an impress of electrical or magnetic force or condition from one body on another without actual contact.
Electro-dynamic induction
, the action by which a variable or interrupted current of electricity excites another current in a neighboring conductor forming a closed circuit.
– Electro-magnetic induction
, the influence by which an electric current produces magnetic polarity in certain bodies near or around which it passes.
– Electro-static induction
, the action by which a body possessing a charge of statical electricity develops a charge of statical electricity of the opposite character in a neighboring body.
– Induction coil
, an apparatus producing induced currents of great intensity. It consists of a coil or helix of stout insulated copper wire, surrounded by another coil of very fine insulated wire, in which a momentary current is induced, when a current (as from a voltaic battery), passing through the inner coil, is made, broken, or varied. The inner coil has within it a core of soft iron, and is connected at its terminals with a condenser; – called also
– inductorium
, and Ruhmkorff’s coil
. Induction pipe
, Induction port
, or Induction valve
a pipe, passageway, or valve, for leading or admitting a fluid to a receiver, as steam to an engine cylinder, or water to a pump.
– Magnetic induction
, the action by which magnetic polarity is developed in a body susceptible to magnetic effects when brought under the influence of a magnet.
– Magneto-electric induction
, the influence by which a magnet excites electric currents in closed circuits.
Logical induction
, (Philos.)
, an act or method of reasoning from all the parts separately to the whole which they constitute, or into which they may be united collectively; the operation of discovering and proving general propositions; the scientific method.
– Philosophical induction
, the inference, or the act of inferring, that what has been observed or established in respect to a part, individual, or species, may, on the ground of analogy, be affirmed or received of the whole to which it belongs. This last is the inductive method of Bacon. It ascends from the parts to the whole, and forms, from the general analogy of nature, or special presumptions in the case, conclusions which have greater or less degrees of force, and which may be strengthened or weakened by subsequent experience and experiment. It relates to actual existences, as in physical science or the concerns of life. Logical induction is founded on the necessary laws of thought; philosophical induction, on the interpretation of the indications or analogy of nature.
Syn. – Deduction.
–
Induction
, Deduction
. In induction we observe a sufficient number of individual facts, and, on the ground of analogy, extend what is true of them to others of the same class, thus arriving at general principles or laws. This is the kind of reasoning in physical science. In deduction we begin with a general truth, which is already proven or provisionally assumed, and seek to connect it with some particular case by means of a middle term, or class of objects, known to be equally connected with both. Thus, we bring down the general into the particular, affirming of the latter the distinctive qualities of the former. This is the syllogistic method. By induction Franklin established the identity of lightning and electricity; by deduction he inferred that dwellings might be protected by lightning rods. Webster 1828 Edition
Induction
INDUC'TION
,Noun.
1.
Literally, a bringing in; introduction; entrance. Hence,2.
In logic and rhetoric, the act of drawing a consequence from two or more propositions, which are called premises.3.
The method of reasoning from particulars to generals, or the inferring of one general proposition from several particular ones.4.
The conclusion or inference drawn from premises or from propositions which are admitted to be true, either in fact, or for the sake of argument.5.
The introduction of a clergyman into a benefice, or giving possession of an ecclesiastical living; or the introduction of a person into an office by the usual forms and ceremonies. Induction is applied to the introduction of officers, only when certain oaths are to be administered or other formalities are to be observed, which are intended to confer authority or give dignity to the transaction. In Great Britain, induction is used for giving possession of ecclesiastical offices. In the United States, it is applied to the formal introduction of civil officers,and the higher officers of colleges.Definition 2024
induction
induction
English
Noun
induction (plural inductions)
- An act of inducting.
- Beaumont and Fletcher
- I know not you; nor am I well pleased to make this time, as the affair now stands, the induction of your acquaintance.
- Shakespeare
- These promises are fair, the parties sure, / And our induction full of prosperous hope.
- Beaumont and Fletcher
- An act of inducing.
- 2002, Gilbert S. Banker & Christopher T. Rhodes, Modern Pharmaceutics, 4th edition, Informa Health Care, ISBN 0824706749, 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.
- (physics) Generation of an electric current by a varying magnetic field.
- (logic) Derivation of general principles from specific instances.
- (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.
- (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.
- (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.
-
- (medicine) The process of inducing the birth process.
- (obsolete) An introduction.
- Massinger
- This is but an induction: I will daw / The curtains of the tragedy hereafter.
- Massinger
Derived terms
Derived terms
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Quotations
- For usage examples of this term, see Citations:induction.
Translations
the act of inducting
a formal ceremony in which a person is inducted into an office or into military service
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generation of an electric current by a varying magnetic field
the derivation of general principles from specific instances
a general proof of a theorem
the use of rumors to twist and complicate the plot
the development of a feature from part of a formerly homogenous field of cells
inducing a birth
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