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单词 revolution
释义

WordReference Random House Learner's Dictionary of American English © 2024
rev•o•lu•tion /ˌrɛvəˈluʃən/USA pronunciation   n. 
  1. Governmenta complete overthrow and replacement of an established government by force: [uncountable]This country does not change its government by revolution.[countable]a number of revolutions in recent years.
  2. Sociology a sudden, complete change in something:[countable]a social revolution caused by automation.
  3. [countable]
    • Mechanicsa turning round or rotating around a single point:The engine was racing at over 50,000 revolutions per minute.
    • Mechanicsa moving in a curving course, as about a central point:one complete revolution around the racetrack.
  4. Astronomy the orbiting of one heavenly body around another:[countable]The earth's revolution around the sun takes one year.
rev•o•lu•tion•ist, n. [countable]

WordReference Random House Unabridged Dictionary of American English © 2024
rev•o•lu•tion  (rev′ə lo̅o̅shən),USA pronunciation n. 
  1. Governmentan overthrow or repudiation and the thorough replacement of an established government or political system by the people governed.
  2. Sociologya radical and pervasive change in society and the social structure, esp. one made suddenly and often accompanied by violence. Cf. social evolution. 
  3. Sociologya 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. [Mech.]
    • Mechanicsa turning round or rotating, as on an axis.
    • Mechanicsa moving in a circular or curving course, as about a central point.
    • Mechanicsa single cycle in such a course.
  7. Astronomy
    • (not in technical use) rotation (def. 2).
    • the orbiting of one heavenly body around another.
    • a single course of such movement.
  8. a round or cycle of events in time or a recurring period of time.
  9. Geologya time of worldwide orogeny and mountain-building.
  • Late Latin revolūtiōn- (stem of revolūtiō), equivalent. to revolūt(us) (see revolute) + -iōn- -ion
  • Middle English revolucion 1350–1400
    • 5.See corresponding entry in Unabridged cycle, circuit, round, rotation.

Collins Concise English Dictionary © HarperCollins Publishers::
revolution /ˌrɛvəˈluːʃən/ n
  1. the overthrow or repudiation of a regime or political system by the governed
  2. (in Marxist theory) the violent and historically necessary transition from one system of production in a society to the next, as from feudalism to capitalism
  3. a far-reaching and drastic change, esp in ideas, methods, etc
  4. movement in or as if in a circle
  5. one complete turn in such a circle: a turntable rotating at 33 revolutions per minute
  6. the orbital motion of one body, such as a planet or satellite, around another
  7. one complete turn in such motion
  8. a cycle of successive events or changes
Etymology: 14th Century: via Old French from Late Latin revolūtiō, from Latin revolvere to revolve
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