资料来源 : pyDict

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资料来源 : Webster's Revised Unabridged Dictionary (1913)

Machine \Ma*chine"\, n. [F., fr. L. machina machine, engine,
   device, trick, Gr. ?, from ? 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.

   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, 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.

   2. Any mechanical contrivance, as the wooden horse with which
      the Greeks entered Troy; a coach; a bicycle. --Dryden.
      --Southey. --Thackeray.

   3. A person who acts mechanically or at will of another.

   4. A combination of persons acting together for a common
      purpose, with the agencies which they use; as, the social
      machine.

            The whole machine of government ought not to bear
            upon the people with a weight so heavy and
            oppressive.                           --Landor.

   5. A political organization arranged and controlled by one or
      more leaders for selfish, private or partisan ends.
      [Political Cant]

   6. Supernatural agency in a poem, or a superhuman being
      introduced to perform some exploit. --Addison.

   {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
      manufacturing.

   {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.

Gun \Gun\, n. [OE. gonne, gunne; of uncertain origin; cf. Ir.,
   {Gael}.) A LL. gunna, W. gum; possibly (like cannon) fr. L.
   canna reed, tube; or abbreviated fr. OF. mangonnel, E.
   mangonel, a machine for hurling stones.]
   1. A weapon which throws or propels a missile to a distance;
      any firearm or instrument for throwing projectiles by the
      explosion of gunpowder, consisting of a tube or barrel
      closed at one end, in which the projectile is placed, with
      an explosive charge behind, which is ignited by various
      means. Muskets, rifles, carbines, and fowling pieces are
      smaller guns, for hand use, and are called {small arms}.
      Larger guns are called {cannon}, {ordnance},
      {fieldpieces}, {carronades}, {howitzers}, etc. See these
      terms in the Vocabulary.

            As swift as a pellet out of a gunne When fire is in
            the powder runne.                     --Chaucer.

            The word gun was in use in England for an engine to
            cast a thing from a man long before there was any
            gunpowder found out.                  --Selden.

   2. (Mil.) A piece of heavy ordnance; in a restricted sense, a
      cannon.

   3. pl. (Naut.) Violent blasts of wind.

   Note: Guns are classified, according to their construction or
         manner of loading as {rifled} or {smoothbore},
         {breech-loading} or {muzzle-loading}, {cast} or
         {built-up guns}; or according to their use, as {field},
         {mountain}, {prairie}, {seacoast}, and {siege guns}.

   {Armstrong gun}, a wrought iron breech-loading cannon named
      after its English inventor, Sir William Armstrong.

   {Great gun}, a piece of heavy ordnance; hence (Fig.), a
      person superior in any way.

   {Gun barrel}, the barrel or tube of a gun.

   {Gun carriage}, the carriage on which a gun is mounted or
      moved.

   {Gun cotton} (Chem.), a general name for a series of
      explosive nitric ethers of cellulose, obtained by steeping
      cotton in nitric and sulphuric acids. Although there are
      formed substances containing nitric acid radicals, yet the
      results exactly resemble ordinary cotton in appearance. It
      burns without ash, with explosion if confined, but quietly
      and harmlessly if free and open, and in small quantity.
      Specifically, the lower nitrates of cellulose which are
      insoluble in ether and alcohol in distinction from the
      highest (pyroxylin) which is soluble. See {Pyroxylin}, and
      cf. {Xyloidin}. The gun cottons are used for blasting and
      somewhat in gunnery: for making celluloid when compounded
      with camphor; and the soluble variety (pyroxylin) for
      making collodion. See {Celluloid}, and {Collodion}. Gun
      cotton is frequenty but improperly called nitrocellulose.
      It is not a nitro compound, but an ethereal salt of nitric
      acid.

   {Gun deck}. See under {Deck}.

   {Gun fire}, the time at which the morning or the evening gun
      is fired.

   {Gun metal}, a bronze, ordinarily composed of nine parts of
      copper and one of tin, used for cannon, etc. The name is
      also given to certain strong mixtures of cast iron.

   {Gun port} (Naut.), an opening in a ship through which a
      cannon's muzzle is run out for firing.

   {Gun tackle} (Naut.), the blocks and pulleys affixed to the
      side of a ship, by which a gun carriage is run to and from
      the gun port.

   {Gun tackle purchase} (Naut.), a tackle composed of two
      single blocks and a fall. --Totten.

   {Krupp gun}, a wrought steel breech-loading cannon, named
      after its German inventor, Herr Krupp.

   {Machine gun}, a breech-loading gun or a group of such guns,
      mounted on a carriage or other holder, and having a
      reservoir containing cartridges which are loaded into the
      gun or guns and fired in rapid succession, sometimes in
      volleys, by machinery operated by turning a crank. Several
      hundred shots can be fired in a minute with accurate aim.
      The {Gatling gun}, {Gardner gun}, {Hotchkiss gun}, and
      {Nordenfelt gun}, named for their inventors, and the
      French {mitrailleuse}, are machine guns.

   {To blow great guns} (Naut.), to blow a gale. See {Gun}, n.,
      3.

资料来源 : WordNet®

machine gun
     n : a rapidly firing automatic gun (often mounted)

machine gun
     v : shoot with a machine gun