English dictionary

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English noun: rotation

1. rotation (act) the act of rotating as if on an axis

SamplesThe rotation of the dancer kept time with the music.

Synonymsrotary motion

Broader (hypernym)motility, motion, move, movement

Narrower (hyponym)circumvolution, feather, feathering, gyration, pivot, pronation, spin, spiral, supination, turn, turnout, twirl, twist, twist, twist, twisting, whirl, whirling, wind, winding

2. rotation (mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin

Broader (hypernym)transformation

Domain categorymath, mathematics, maths

3. rotation (event) a single complete turn (axial or orbital)

SamplesThe plane made three rotations before it crashed.
The revolution of the earth about the sun takes one year.

Synonymsgyration, revolution

Broader (hypernym)turn, turning

Narrower (hyponym)axial motion, axial rotation, clockwise rotation, counterclockwise rotation, dextrorotation, levorotation, orbital motion, orbital rotation, roll, spin

4. rotation (attribute) a planned recurrent sequence (of crops or personnel etc.)

SamplesCrop rotation makes a balanced demand on the fertility of the soil.
The manager had only four starting pitchers in his rotation.

Broader (hypernym)chronological sequence, chronological succession, sequence, succession, successiveness

Based on WordNet 3.0 copyright © Princeton University.
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