revolution

rev·o·lu·tion

noun \ˌre-və-ˈlü-shən\

Definition of REVOLUTION

1

a (1) : the action by a celestial body of going round in an orbit or elliptical course; also : apparent movement of such a body round the earth (2) : the time taken by a celestial body to make a complete round in its orbit (3) : the rotation of a celestial body on its axis b : completion of a course (as of years); also : the period made by the regular succession of a measure of time or by a succession of similar events c (1) : a progressive motion of a body around an axis so that any line of the body parallel to the axis returns to its initial position while remaining parallel to the axis in transit and usually at a constant distance from it (2) : motion of any figure about a center or axis <revolution of a right triangle about one of its legs generates a cone> (3) : rotation 1b

2

a : a sudden, radical, or complete change b : a fundamental change in political organization; especially : the overthrow or renunciation of one government or ruler and the substitution of another by the governed c : activity or movement designed to effect fundamental changes in the socioeconomic situation d : a fundamental change in the way of thinking about or visualizing something : a change of paradigm <the Copernican revolution> e : a changeover in use or preference especially in technology <the computer revolution> <the foreign car revolution>

Examples of REVOLUTION

1. The group started a revolution.
2. The king knew that there was a threat of revolution.
3. This new theory could cause a revolution in elementary education.
4. the revolution of the Earth around the Sun
5. The period of revolution of the Earth around the Sun is equal to one year.
6. The Earth makes one revolution on its axis in about 24 hours.
7. This motor operates at a speed of 5,000 revolutions per minute.

Origin of REVOLUTION

Middle English revolucioun, from Middle French revolution, from Late Latin revolution-, revolutio, from Latin revolvere to revolve

First Known Use: 14th century

Related to REVOLUTION

Synonyms: gyration, pirouette, reel, spin, roll, rotation, twirl, wheel, whirl

Related Words: circuit, circulation, ring, round; coil, curl, curve, spiral, twist, whorl; circle, orbit; eddy, swirl

Near Antonyms: counterinsurgency, counterrevolution

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See Synonym Discussion at rebellion

Other Astronomy Terms

gibbous, nadir, nebulous, penumbra, retrograde, sidereal, syzygy, wane, wax, zenith

Rhymes with REVOLUTION

absolution, allocution, attribution, comminution, consecution, constitution, contribution, convolution, destitution, dissolution, distribution, elocution, evolution, execution, exsolution, institution, involution, persecution, prosecution, prostitution, resolution, restitution, retribution, Rosicrucian, substitution