# rotation

## Definitions

### from The American Heritage® Dictionary of the English Language, 4th Edition

• n. The act or process of turning around a center or an axis: the axial rotation of the earth.
• n. A single complete cycle of such motion.
• n. Mathematics 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.
• n. Regular and uniform variation in a sequence or series: a rotation of personnel; crop rotation.
• n. Games An order of shooting balls in billiards in which the ball with the lowest number on the table is always pocketed first.

• n. The act of turning around a centre or an axis.
• n. A single complete cycle around a centre or an axis.
• n. A regular variation in a sequence.
• n. An isometry that fixes precisely one point.
• n. The set of starting pitchers of a team.
• n. The step during takeoff when the pilot commands the vehicle to lift the nose wheel off the ground during the takeoff roll.

### from the GNU version of the Collaborative International Dictionary of English

• adj. Pertaining to, or resulting from, rotation; of the nature of, or characterized by, rotation.
• n. The act of turning, as a wheel or a solid body on its axis, as distinguished from the progressive motion of a revolving round another body or a distant point; thus, the daily turning of the earth on its axis is a rotation; its annual motion round the sun is a revolution.
• n. Any return or succesion in a series.

### from The Century Dictionary and Cyclopedia

• n. The act of rotating or turning, or the state of being whirled round; the continuous motion of a solid body, as a wheel or sphere, about an axis, its opposite sides moving relatively to one another, as distinguished from the forward motion of the whole body in a circle or an ellipse independent of any relative motion of its parts, as that of the planets.
• n. A peculiar spiral movement of fluids observed within the cavity of certain vegetable cells, as in Chara and Vallisneria. See below.
• n. Serial or recurrent order; a round or sequence of one after another; a fixed or definite routine of succession; regularly recurring change.
• n. In forestry, the period represented by the age of a forest, or a part of a forest, at the time when it is cut, or intended to be cut.

• n. a planned recurrent sequence (of crops or personnel etc.)
• n. a single complete turn (axial or orbital)
• n. (mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin
• n. the act of rotating as if on an axis

## Etymologies

From Latin rotationem, accusative of rotatio. (Wiktionary)

## Examples

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