dict.org

The DICT Development Group


Search for:
Search type:
Database:

Database copyright information
Server information
Wiki: Resources, links, and other information


6 definitions found
 for induction
From The Collaborative International Dictionary of English v.0.48 :

  Induction \In*duc"tion\, n. [L. inductio: cf. F. induction. See
     Induct.]
     [1913 Webster]
     1. The act or process of inducting or bringing in;
        introduction; entrance; beginning; commencement.
        [1913 Webster]
  
              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.
        [1913 Webster]
  
              These promises are fair, the parties sure,
              And our induction dull of prosperous hope. --Shak.
        [1913 Webster]
  
     2. An introduction or introductory scene, as to a play; a
        preface; a prologue. [Obs.]
        [1913 Webster]
  
              This is but an induction: I will draw
              The curtains of the tragedy hereafter. --Massinger.
        [1913 Webster]
  
     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.
        [1913 Webster]
  
              Induction is an inference drawn from all the
              particulars.                          --Sir W.
                                                    Hamilton.
        [1913 Webster]
  
              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.
        [1913 Webster]
  
     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.
        [1913 Webster]
  
     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.
        [1913 Webster]
  
     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.
        [1913 Webster]
  
     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.
        [1913 Webster]
  
     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.
        [1913 Webster]
  
     Syn: Deduction.
  
     Usage: 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.
            [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  Magnetic \Mag*net"ic\, Magnetical \Mag*net"ic*al\, a. [L.
     magneticus: cf. F. magn['e]tique.]
     1. Pertaining to the magnet; possessing the properties of the
        magnet, or corresponding properties; as, a magnetic bar of
        iron; a magnetic needle.
        [1913 Webster]
  
     2. Of or pertaining to, or characterized by, the earth's
        magnetism; as, the magnetic north; the magnetic meridian.
        [1913 Webster]
  
     3. Capable of becoming a magnet; susceptible to magnetism;
        as, the magnetic metals.
        [1913 Webster]
  
     4. Endowed with extraordinary personal power to excite the
        feelings and to win the affections; attractive; inducing
        attachment.
        [1913 Webster]
  
              She that had all magnetic force alone. --Donne.
        [1913 Webster]
  
     5. Having, susceptible to, or induced by, animal magnetism,
        so called; hypnotic; as, a magnetic sleep. See
        Magnetism. [Archaic]
        [1913 Webster +PJC]
  
     Magnetic amplitude, attraction, dip, induction, etc.
        See under Amplitude, Attraction, etc.
  
     Magnetic battery, a combination of bar or horseshoe magnets
        with the like poles adjacent, so as to act together with
        great power.
  
     Magnetic compensator, a contrivance connected with a ship's
        compass for compensating or neutralizing the effect of the
        iron of the ship upon the needle.
  
     Magnetic curves, curves indicating lines of magnetic force,
        as in the arrangement of iron filings between the poles of
        a powerful magnet.
  
     Magnetic elements.
        (a) (Chem. Physics) Those elements, as iron, nickel,
            cobalt, chromium, manganese, etc., which are capable
            or becoming magnetic.
        (b) (Physics) In respect to terrestrial magnetism, the
            declination, inclination, and intensity.
        (c) See under Element.
  
     Magnetic fluid, the hypothetical fluid whose existence was
        formerly assumed in the explanations of the phenomena of
        magnetism; -- no longer considered a meaningful concept.
        
  
     Magnetic iron, or Magnetic iron ore. (Min.) Same as
        Magnetite.
  
     Magnetic needle, a slender bar of steel, magnetized and
        suspended at its center on a sharp-pointed pivot, or by a
        delicate fiber, so that it may take freely the direction
        of the magnetic meridian. It constitutes the essential
        part of a compass, such as the mariner's and the
        surveyor's.
  
     Magnetic poles, the two points in the opposite polar
        regions of the earth at which the direction of the dipping
        needle is vertical.
  
     Magnetic pyrites. See Pyrrhotite.
  
     Magnetic storm (Terrestrial Physics), a disturbance of the
        earth's magnetic force characterized by great and sudden
        changes.
  
     magnetic tape (Electronics), a ribbon of plastic material
        to which is affixed a thin layer of powder of a material
        which can be magnetized, such as ferrite. Such tapes are
        used in various electronic devices to record fluctuating
        voltages, which can be used to represent sounds, images,
        or binary data. Devices such as audio casette recorders,
        videocasette recorders, and computer data storage devices
        use magnetic tape as an inexpensive medium to store data.
        Different magnetically susceptible materials are used in
        such tapes.
  
     Magnetic telegraph, a telegraph acting by means of a
        magnet. See Telegraph.
        [1913 Webster + PJC]

From WordNet (r) 3.0 (2006) :

  induction
      n 1: a formal entry into an organization or position or office;
           "his initiation into the club"; "he was ordered to report
           for induction into the army"; "he gave a speech as part of
           his installation into the hall of fame" [syn: initiation,
           induction, installation]
      2: an electrical phenomenon whereby an electromotive force (EMF)
         is generated in a closed circuit by a change in the flow of
         current [syn: induction, inductance]
      3: reasoning from detailed facts to general principles [syn:
         generalization, generalisation, induction, inductive
         reasoning]
      4: stimulation that calls up (draws forth) a particular class of
         behaviors; "the elicitation of his testimony was not easy"
         [syn: evocation, induction, elicitation]
      5: the act of bringing about something (especially at an early
         time); "the induction of an anesthetic state"
      6: an act that sets in motion some course of events [syn:
         trigger, induction, initiation]

From Moby Thesaurus II by Grady Ward, 1.0 :

  131 Moby Thesaurus words for "induction":
     Baconian method, a fortiori reasoning, a posteriori reasoning,
     a priori reasoning, accedence, acceptance, accession, admission,
     admittance, alphabet, analysis, apostolic orders, appointment,
     baptism, basics, call, call-up, calling, canonization, coming out,
     compulsory military service, conclusion, conferment, conscription,
     consecration, consequence, consequent, corollary, coronation,
     curtain raiser, debut, deduction, deductive reasoning,
     demonstration, derivation, discourse, discourse of reason,
     discursive reason, draft, draft call, drafting, election,
     electromagnetic induction, electrostatic induction, elements,
     embarkation, embarkment, enlistment, enrollment, enthronement,
     epagoge, first appearance, first principles, first steps, floating,
     flotation, generalization, grammar, henry, holy orders, hornbook,
     hypothesis and verification, illation, immission, impressment,
     inaugural, inaugural address, inauguration, inductance,
     inductive reasoning, inductivity, inference, initiation,
     installation, installment, instatement, institution, introduction,
     intromission, investiture, launching, levy, logical thought,
     magnetic induction, maiden speech, major orders, minor orders,
     mobilization, muster, mutual induction, nomination, opener,
     ordainment, orders, ordination, outlines, particularization,
     philosophical induction, philosophy, placement, preferment,
     preliminary, presentation, press, primer, principia, principles,
     proof, ratiocination, rationalism, rationality, rationalization,
     rationalizing, reading in, reason, reasonableness, reasoning,
     recruiting, recruitment, rudiments, selective service,
     self-induction, sophistry, specious reasoning, summons,
     sweet reason, syllogism, syllogistic reasoning, synthesis,
     taking office, unveiling
  
  

From The Free On-line Dictionary of Computing (18 March 2015) :

  induction
  
      A method of proving statements about well-ordered
     sets.  If S is a well-ordered set with ordering "<", and we
     want to show that a property P holds for every element of S,
     it is sufficient to show that, for all s in S,
  
     	IF for all t in S, t < s => P(t) THEN P(s)
  
     I.e. if P holds for anything less than s then it holds for s.
     In this case we say P is proved by induction.
  
     The most common instance of proof by induction is induction
     over the natural numbers where we prove that some property
     holds for n=0 and that if it holds for n, it holds for n+1.
  
     (In fact it is sufficient for "<" to be a well-founded
     partial order on S, not necessarily a well-ordering of S.)
  
     (1999-12-09)
  

From Bouvier's Law Dictionary, Revised 6th Ed (1856) :

  INDUCTION, eccles. law. The giving a clerk, instituted to a benefice, the 
  actual possession of its temporalties, in the nature of livery of seisin. 
  Ayl. Parerg. 299. 
  
  

Questions or comments about this site? Contact webmaster@dict.org