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revolution

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rev⋅o⋅lu⋅tion

  [rev-uh-loo-shuhn]
Use revolution in a Sentence
–noun
1. an overthrow or repudiation and the thorough replacement of an established government or political system by the people governed.
2. Sociology. a radical and pervasive change in society and the social structure, esp. one made suddenly and often accompanied by violence. Compare social evolution.
3. a sudden, complete or marked change in something: the present revolution in church architecture.
4. a procedure or course, as if in a circuit, back to a starting point.
5. a single turn of this kind.
6. Mechanics.
a. a turning round or rotating, as on an axis.
b. a moving in a circular or curving course, as about a central point.
c. a single cycle in such a course.
7. Astronomy.
a. (not in technical use) rotation (def. 2).
b. the orbiting of one heavenly body around another.
c. a single course of such movement.
8. a round or cycle of events in time or a recurring period of time.
9. Geology. a time of worldwide orogeny and mountain-building.
Origin:
1350–1400; ME revolucion < LL revolūtiōn- (s. of revolūtiō), equiv. to revolūt(us) (see revolute ) + -iōn- -ion

Synonyms:
5. cycle, circuit, round, rotation.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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rev·o·lu·tion   (rěv'ə-lōō'shən)   
n.  

    1. Orbital motion about a point, especially as distinguished from axial rotation: the planetary revolution about the sun.

    2. A turning or rotational motion about an axis.

    3. A single complete cycle of such orbital or axial motion.

  2. The overthrow of one government and its replacement with another.

  3. A sudden or momentous change in a situation: the revolution in computer technology.

  4. Geology A time of major crustal deformation, when folds and faults are formed.


[Middle English revolucioun, from Old French revolution, from Late Latin revolūtiō, revolūtiōn-, from Latin revolūtus, past participle of revolvere, to turn over; see revolve.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

revolution 
1390, originally of celestial bodies, from O.Fr. revolution, from L.L. revolutionem (nom. revolutio) "a revolving," from L. revolutus, pp. of revolvere "turn, roll back" (see revolve). General sense of "instance of great change in affairs" is recorded from c.1450. Political meaning first recorded 1600, derived from French, and was especially applied to the expulsion of the Stuart dynasty under James II in 1688 and transfer of sovereignty to William and Mary. Revolutionary as a noun is first attested 1850, from the adjective. Revolutionize "to change a thing completely and fundamentally" is first recorded 1799.
Online Etymology Dictionary, © 2001 Douglas Harper
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