Noun

(en noun)

(chiefly, uncountable) The act of turning around a centre or an axis.

*{{quote-magazine, date=2013-03

, author=Frank Fish, George Lauder , title=Not Just Going with the Flow , volume=101, issue=2, page=114 , magazine= citation , passage=An extreme version of vorticity is a vortex . The vortex is a spinning, cyclonic mass of fluid, which can be observed in the rotation of water going down a drain, as well as in smoke rings, tornados and hurricanes.}}

The earth's rotation about its axis is responsible for its being slightly oblate rather than a sphere.

A single complete cycle around a centre or an axis.

Earth's moon completes a rotation every twenty-seven days or so.

A regular variation in a sequence.

crop rotation

The medical resident finished a two-week rotation in pediatrics and began one in orthopaedics.

(mathematics) An operation that a continuous isometry deformation that fixes at least one point can result in.

The function mapping (''x'',''y'') to (''&

x2212;y'',''x'') is a rotation .

(baseball) The set of (soplink) of a team.

(aviation) The step during takeoff when the pilot commands the vehicle to lift the nose wheel off the ground during the takeoff roll.

Noun

(uncountable) precedence

* ''But as it will not do to talk entirely at random, as Montaigne does, and Ralph Waldo Emerson tries to do, we must take up some little thread or threads. and string our thoughts thereupon, keeping up also a relation among them of precession and succession.

(physics, countable) The wobbling motion of the axis of a spinning body when there is an external force acting on the axis.

(astronomy, uncountable) The slow gyration of the earth’s axis around the pole of the ecliptic, caused mainly by the gravitational torque of the sun and moon.

Any of several slow changes in an astronomical body's rotational or orbital parameters.