an apparatus consisting of interrelated parts with separate functions, used in the performance of some kind of work: a sewing machine.
a mechanical apparatus or contrivance; mechanism.
a device that transmits or modifies force or motion.
Also called simple machine. any of six or more elementary mechanisms, as the lever, wheel and axle, pulley, screw, wedge, and inclined plane.
Also called complex machine. a combination of simple machines.
Older Use.
an automobile or airplane.
a typewriter.
a bicycle or motorcycle.
a vending machine: a cigarette machine.
any complex agency or operating system: the machine of government.
an organized group of persons that conducts or controls the activities of a political party or organization: He heads the Democratic machine in our city.
a person or thing that acts in a mechanical or automatic manner: Routine work had turned her into a machine.
any of various contrivances, especially those formerly used in theater, for producing stage effects
some agency, personage, incident or other feature introduced for effect into a literary composition.
verb (used with object), machined, machining.
to make, prepare, or finish with a machine or with machine tools.

1540–50; < French < Latin māchina < Doric Greek māchanā́ pulley, akin to mâchos contrivance; cf. mechanic

machineless, adjective
antimachine, adjective
unmachined, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
machine (məˈʃiːn)
1.  an assembly of interconnected components arranged to transmit or modify force in order to perform useful work
2.  Also called: simple machine a device for altering the magnitude or direction of a force, esp a lever, screw, wedge, or pulley
3.  a mechanically operated device or means of transport, such as a car, aircraft, etc
4.  any mechanical or electrical device that automatically performs tasks or assists in performing tasks
5.  a.  (modifier) denoting a firearm that is fully automatic as distinguished from semiautomatic
 b.  (in combination): machine pistol; machine gun
6.  any intricate structure or agency: the war machine
7.  a mechanically efficient, rigid, or obedient person
8.  an organized body of people that controls activities, policies, etc
9.  (esp in the classical theatre) a device such as a pulley to provide spectacular entrances and exits for supernatural characters
10.  an event, etc, introduced into a literary work for special effect
11.  (tr) to shape, cut, or remove (excess material) from (a workpiece) using a machine tool
12.  to use a machine to carry out a process on (something)
[C16: via French from Latin māchina machine, engine, from Doric Greek makhana pulley; related to makhos device, contrivance]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

1540s, "structure of any kind," from M.Fr. machine "device, contrivance," from L. machina "machine, engine, fabric, frame, device, trick" (cf. Sp. maquina, It. macchina), from Gk. makhana, Doric variant of mekhane "device, means," related to mekhos "means, expedient, contrivance," from PIE *maghana-
"that which enables," from base *magh- "to be able, have power" (cf. O.C.S. mogo "be able," O.E. mæg "I can;" see might). Main modern sense of "device made of moving parts for applying mechanical power" (1670s) probably grew out of mid-17c. senses of "apparatus, appliance" and "military siege-tower." In late 19c. slang the word was used for both "penis" and "vagina," one of the very few to be so honored. Political sense is U.S. slang, first recorded 1876. Machine Age (1922) was coined by Lewis Mumford. Machine-gun is first attested 1870; the verb is from 1915. Machine for living (in) "house" translates Le Corbusier's machine à habiter (1923).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
machine   (mə-shēn')  Pronunciation Key 
A device that applies force, changes the direction of a force, or changes the strength of a force, in order to perform a task, generally involving work done on a load. Machines are often designed to yield a high mechanical advantage to reduce the effort needed to do that work. ◇ A simple machine is a wheel, a lever, or an inclined plane. All other machines can be built using combinations of these simple machines; for example, a drill uses a combination of gears (wheels) to drive helical inclined planes (the drill-bit) to split a material and carve a hole in it.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Computing Dictionary

machine definition

Common term for "computer", usually when considered at the hardware level. The Turing Machine, an early example of this usage, was however neither hardware nor software, but only an idea.
[Earlier use?]

The Free On-line Dictionary of Computing, © Denis Howe 2010
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Example sentences
The newest device aiming for efficiency in the retail distribution of dry goods
  is a merchandise vending machine.
The venerable slot machine is undergoing a generational shift.
It seems more likely that they pressed the wrong button, or that the machine
  failed to register their votes properly.
OK, so there's no such thing as a gamma ray machine that zaps scientists and
  turns them into giant green monsters.
Images for machine
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