ROTATION β Definition of ROTATION
noun
1
The act of turning around a centre or an axis.
The earth's rotation about its axis is responsible for its being slightly oblate rather than a sphere.
2
A single complete cycle around a centre or an axis.
Earth's moon completes a rotation every twenty-seven days or so.
3
A regular variation in a sequence, such as to even-out wear, or people taking turns in a task; a duty roster.
In rotation, each member of the group would be responsible for the beacon fire.
4
An operation on a metric space that is a continuous isometry and fixes at least one point.
The function mapping (x,y) to (βy,x) is a rotation.
π Source: en.wiktionary.org/wiki/rotation
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