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rotation

[roh-tey-shuhn]

Example Sentences Origin

noun

the act of rotating; a turning around as on an axis.

Astronomy.

the movement or path of the earth or a heavenly body turning on its axis.

one complete turn of such a body.

regularly recurring succession, as of officials.

Agriculture. crop rotation.

Mathematics.

an operation that rotates a geometric figure about a fixed point.

curl (def. 17).

EXPAND

Pool. a game in which the balls are played in order by number.

Baseball. pitching rotation.

COLLAPSE

Origin:
1545–55; < Latin rotātiōn- (stem of rotātiō) a rotation, rolling, equivalent to rotāt(us) (see rotate¹) + -iōn- -ion

Related forms

ro·ta·tion·al, adjective

non·ro·ta·tion, noun

non·ro·ta·tion·al, adjective

un·ro·ta·tion·al, adjective

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Link To rotation

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Rotation is always a great word to know.

So is dwarf star. Does it mean:

the distance traversed by light in one mean solar year, about 5.88 trillion mi. (9.46 trillion km)

a low-mass star that emits low to average amounts of light that burn their hydrogen slowly over a long life span

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Example Sentences

We're in a six-man rotation right now because we're forced to be in a six-man rotation.

Currently in heavy rotation on the modern-rock stations, it is a song in which the singer/speaker contemplates suicide.

In empire, there was an alternative: incompetent rulers could be removed, and there was a rotation of people.

EXPAND

We're in a six-man rotation right now because we're forced to be in a six-man rotation.

Currently in heavy rotation on the modern-rock stations, it is a song in which the singer/speaker contemplates suicide.

In empire, there was an alternative: incompetent rulers could be removed, and there was a rotation of people.

Farms can slash their fossil fuel use and still turn a profit, all with the help of more complex crop rotation.

Similarly, her rotation slows when she extends her arms at the conclusion of the spin.

When the moon is farther away, the axis rotation kind of gets behind the moon's orbital motion.

France, which also competed on the vault, was second after the first rotation.

Crop rotation using herbaceous legumes such as clover and alfalfa is standard practice in many parts of the world.

Earth's rotation is ever so slightly slowing down, but atomic clocks remain unwaveringly consistent.

When a pitcher throws a knuckleball, the ball has no rotation and appears to flutter.

Convention puts the angular velocity vector along the axis of rotation.

The first is that caused directly by the spoon: the rotation of the tea around a vertical axis at the centre of the cup.

The forces originate in the solar interior, he added, where the sun's rotation twists the magnetic field.

They propose instead that its rotation slowed to a standstill and then reversed direction.

Note that this moment of inertia calculation depends on the location of the axis of rotation.

Though the rotation takes only a few seconds, the overall image will be blurred if the patient moves.

Rotation makes more nutrients available to the plants, improves soil structure, and improves yields.

It seemed to me that there must be some fundamental misconception involved in this galaxy rotation problem.

The jets, which sometimes clump up into little knots and asymmetries, help slow down the infant star's rotation.

Other rules could be added, such as one stipulating a rotation of the games between continents.

The bubbles might be created by the rotation of the sun, the scientists said.

Rotation reduces felt gravity slightly so it's actually trying to fling air into space.

The rock is making vertical circles with the rock at one point in between me and the axis of rotation for the merry-go-round.

Dataslide proposes to abandon rotation in favour of vibration.

Doppler radar can detect strong rotation within a storm, information useful in predicting the likelihood of a tornado.

Hmm, wonder if it has to do with rotation of the earth.

Variable pressure let farmers apply different amounts of water on each full rotation.

Placing a lidar in the centre of a turbine proved difficult, because of forces generated by the turbine's rotation.

Crop rotation is an effective way to tamp down on pest populations.

Strength of gravitoethertons dictate rotation and may be different from planets rotation to stars rotation in galaxy.

These three games have been in pretty steady rotation since the game arrived.

Earth's rotation gives it a twist, creating a whorl of rain bands.

The high rotation rate could also have affected this distinguishing feature.

See the path of the stars and rotation of the earth over ancient temples and old s.

The pulsar's rapid rotation likely helped create the nebula's odd shape.

Plasticity, for instance, wouldn't be expected to respond to overall rotation of the apparatus.

They have recently put out another game that will see heavy rotation in our house.

But their counterclockwise rotation produces southward winds on their leading edge.

But the dynamo theory allows the earth's rotation to act as a driving force.

They have opposite directions of torque because they would cause rotation in different directions.

One or two of his buddies joined in to vary my angle of rotation.

His data showed that the sun was much more oblate than scientists would predict based on the star's surface rotation.

There is also a strong case for compulsory rotation of auditors.

In short, mandatory auditor rotation would be flawed in concept and perverse in practice.

The buy-back rotation of books is an outrageous scam.

They do so because rotation is smoother than the up-and-down motion of.

Upwelling is a result of winds and the rotation of.

The rotation of the earth gives the updraft of moist, warm air a spin, and so a hurricane is born.

Instructors who don't toe the line don't remain in the rotation.

However, the rotation curves give no indication of the maximum extent of the.

Torre did acknowledge he maybe moved a day too soon when he made his initial rotation announcements.

The slimming down out many branded suppliers product range gave greater shelf rotation for the faster moving products.

Uranus's rotation axis is nearly horizontal, as though the planet has been knocked on its side.

Vr is the speed at which the nose gear lifts off and is commonly referred to as the rotation speed.

Burnett lately has found himself nominated to be the odd man out in a rotation that is about to go from six pitchers to five.

The proposal for mandatory rotation of audit firms has been floating around for the better part of a year.

If this is followed by a similar rotation the other way, the original positions are restored.

The vector r is a vector from the point of rotation to the point where the force is applied to the object.

He will miss his start today but said he planned to rejoin the rotation for his next turn.

More holidays, maternity and paternity leave, more frequent job rotation and share options also now feature.

For novice players, there is also an option where rotation of pieces is not required.

Rotation is one way that superfluids reveal their peculiar properties.

They couldn't maintain stable rotation speeds, and their crude bearings caused the mirrors to vibrate.

Such a system would matter less if there were more frequent rotation in government.

Scientists say the asteroid also has one of the strangest rotation states yet observed in the solar system.

It is impossible to directly see the dark matter but, by observing the rotation of stars around each galactic.

British tactics changed with each six-month rotation of troops.

Rotation of rigid objects can get crazy complicated, but in this case everything will behave.

In other words, their axes of rotation all point the same way.

Be on an on-call rotation with teammates to cover gaps in coverage.

Of course not, you would say that both are caused by the rotation of the earth around the sun.

Alt text and rotation instructions for each ad unit.

Gravity also causes the magnetic field by the rotation of liquid core ions through a gravity field.

Petrovskyy also added a microcontroller to randomly change the motors' rate of rotation.

Researchers will use instruments to measure its rotation and composition.

Simply slowing the rotation or cooling the gear would return it to normal operation.

The movements of the performer control directly the position of the robot's effector, and the rotation and opening of the.

Three other sensors-one on the head and two on the remaining limb-detect the position and rotation of the user's body.

Inertia sensors are faster, but less accurate, providing only acceleration and rotation speed.

They don't need industrial-strength marketing campaigns or heavy rotation.

Spy-1 sends out multiple beams in continuous rotation and is five times faster than conventional radar.

It may be used as a rotation crop for wheat, to increase the health of the soil".

The rotation is heralded as good for wildlife and for agriculture:.

It misses my front bumper by inches and makes a full rotation in the rearview.

Crop rotation prevents these diseases from taking hold.

Two-piece bezel doesn't allow height or rotation adjustments.

Turn the compost tumbler's hand crank one rotation each day, or the number of rotations specified by the manufacturer.

COLLAPSE

Collins

World English Dictionary

rotation (rəʊˈteɪʃən)

—n
1.	the act of rotating; rotary motion
2.	a regular cycle of events in a set order or sequence
3.	a planned sequence of cropping according to which the crops grown in successive seasons on the same land are varied so as to make a balanced demand on its resources of fertility
4.	maths
	a. a circular motion of a configuration about a given point or line, without a change in shape
	b. a transformation in which the coordinate axes are rotated by a fixed angle about the origin
	c. another name for curl Abbreviation (for sense 4c): rot
5.	a. Compare revolution the spinning motion of a body, such as a planet, about an internal axis
	b. one complete turn in such motion

ro'tational

—*adj*

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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Etymonline

Word Origin & History

rotation

1555, from L. rotationem (nom. rotatio), noun of action from rotare "revolve, roll," from PIE *roto- (see rotary). Verb rotate is an 1808 back-formation. Rotator "muscle which allows a part to be moved circularly" is recorded from 1676.

American Heritage

Medical Dictionary

rotation ro·ta·tion (rō-tā'shən)
n.

The act or process of turning around a center or an axis.
Regular and uniform variation in a sequence or series, as in the recurrence of symptoms of a disease.

American Heritage

Science Dictionary

rotation

(rō-tā'shən) Pronunciation Key

The motion of an object around an internal axis.
A single complete cycle of such motion. See Note at revolution.
A transformation of a coordinate system in which the new axes have a specified angular displacement from their original position while the origin remains fixed.

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"The lazy manage to keep up with the earth's rotation just as well as the industrious."

-Mason Cooley

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