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4 definitions found
 for Machine tool
From The Collaborative International Dictionary of English v.0.48 :

  Machine \Ma*chine"\ (m[.a]*sh[=e]n"), n. [F., fr. L. machina
     machine, engine, device, trick, Gr. mhchanh`, from mh^chos
     means, expedient. Cf. Mechanic.]
     1. In general, any combination of bodies so connected that
        their relative motions are constrained, and by means of
        which force and motion may be transmitted and modified, as
        a screw and its nut, or a lever arranged to turn about a
        fulcrum or a pulley about its pivot, etc.; especially, a
        construction, more or less complex, consisting of a
        combination of moving parts, or simple mechanical
        elements, as wheels, levers, cams, etc., with their
        supports and connecting framework, calculated to
        constitute a prime mover, or to receive force and motion
        from a prime mover or from another machine, and transmit,
        modify, and apply them to the production of some desired
        mechanical effect or work, as weaving by a loom, or the
        excitation of electricity by an electrical machine.
        [1913 Webster]
     Note: The term machine is most commonly applied to such
           pieces of mechanism as are used in the industrial arts,
           for mechanically shaping, dressing, and combining
           materials for various purposes, as in the manufacture
           of cloth, etc. Where the effect is chemical, or other
           than mechanical, the contrivance is usually denominated
           an apparatus or device, not a machine; as, a bleaching
           apparatus. Many large, powerful, or specially important
           pieces of mechanism are called engines; as, a steam
           engine, fire engine, graduating engine, etc. Although
           there is no well-settled distinction between the terms
           engine and machine among practical men, there is a
           tendency to restrict the application of the former to
           contrivances in which the operating part is not
           distinct from the motor.
           [1913 Webster]
     2. Any mechanical contrivance, as the wooden horse with which
        the Greeks entered Troy; a coach; a bicycle. --Dryden.
        --Southey. --Thackeray.
        [1913 Webster]
     3. A person who acts mechanically or at the will of another.
        [1913 Webster]
     4. A combination of persons acting together for a common
        purpose, with the agencies which they use; as, the social
        [1913 Webster]
              The whole machine of government ought not to bear
              upon the people with a weight so heavy and
              oppressive.                           --Landor.
        [1913 Webster]
     5. A political organization arranged and controlled by one or
        more leaders for selfish, private or partisan ends; the
        Tammany machine. [Political Cant]
        [1913 Webster]
     6. Supernatural agency in a poem, or a superhuman being
        introduced to perform some exploit. --Addison.
        [1913 Webster]
     Elementary machine, a name sometimes given to one of the
        simple mechanical powers. See under Mechanical.
     Infernal machine. See under Infernal.
     Machine gun.See under Gun.
     Machine screw, a screw or bolt adapted for screwing into
        metal, in distinction from one which is designed
        especially to be screwed into wood.
     Machine shop, a workshop where machines are made, or where
        metal is shaped by cutting, filing, turning, etc.
     Machine tool, a machine for cutting or shaping wood, metal,
        etc., by means of a tool; especially, a machine, as a
        lathe, planer, drilling machine, etc., designed for a more
        or less general use in a machine shop, in distinction from
        a machine for producing a special article as in
     Machine twist, silken thread especially adapted for use in
        a sewing machine.
     Machine work, work done by a machine, in contradistinction
        to that done by hand labor.
        [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  machine tool \machine tool\ n.
     A power-driven machine for cutting or shaping or finishing
     metals or other materials.
     [WordNet 1.5]

From The Collaborative International Dictionary of English v.0.48 :

  Tool \Tool\ (t[=oo]l), n. [OE. tol,tool. AS. t[=o]l; akin to
     Icel. t[=o]l, Goth. taijan to do, to make, taui deed, work,
     and perhaps to E. taw to dress leather. [root]64.]
     1. An instrument such as a hammer, saw, plane, file, and the
        like, used in the manual arts, to facilitate mechanical
        operations; any instrument used by a craftsman or laborer
        at his work; an implement; as, the tools of a joiner,
        smith, shoe-maker, etc.; also, a cutter, chisel, or other
        part of an instrument or machine that dresses work.
        [1913 Webster]
     2. A machine for cutting or shaping materials; -- also called
        machine tool.
        [1913 Webster]
     3. Hence, any instrument of use or service.
        [1913 Webster]
              That angry fool . . .
              Whipping her horse, did with his smarting tool
              Oft whip her dainty self.             --Spenser.
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     4. A weapon. [Obs.]
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              Him that is aghast of every tool.     --Chaucer.
        [1913 Webster]
     5. A person used as an instrument by another person; -- a
        word of reproach; as, men of intrigue have their tools, by
        whose agency they accomplish their purposes.
        [1913 Webster]
              I was not made for a minion or a tool. --Burks.
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

  machine tool
      n 1: a powered machine for cutting or shaping or finishing
           metals or other materials

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