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Webster 1913 Edition


Rotation

Ro-ta′tion

,
Noun.
[L.
rotatio
: cf. F.
rotation
.]
1.
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.
2.
Any return or succesion in a series.
Moment of rotation
.
See
Moment of inertia
, under
Moment
.
Rotation in office
,
the practice of changing public officers at frequent intervals by discharges and substitutions.
Rotation of crops
,
the practices of cultivating an orderly succession of different crops on the same land.

Ro-ta′tion

,
Adj.
Pertaining to, or resulting from, rotation; of the nature of, or characterized by, rotation;
as,
rotational
velocity
.

Webster 1828 Edition


Rotation

ROTA'TION

,
Noun.
[L. rotatio, from roto, to turn; rota, a wheel.]
1.
The act of turning, as a wheel or solid body on its axis, as distinguished from the progressive motion of a body 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.
2.
Vicissitude of succession; the course by which officers or others leave their places at certain times and are succeeded by others; applied also to a change of crops.

Definition 2022


Rotation

Rotation

See also: rotation

German

Noun

Rotation f (genitive Rotation, plural Rotationen)

  1. rotation

rotation

rotation

See also: Rotation

English

Noun

rotation (plural rotations)

  1. (chiefly uncountable) The act of turning around a centre or an axis.
    • 2013 March 1, Frank Fish, George Lauder, “Not Just Going with the Flow”, in American Scientist, volume 101, number 2, page 114:
      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.
  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.
    crop rotation
    The medical resident finished a two-week rotation in pediatrics and began one in orthopaedics.
  4. (mathematics, geometry) An operation on a metric space that is a continuous isometry and fixes at least one point.
    The function mapping (x,y) to (y,x) is a rotation.
  5. (baseball) The set of starting pitchers of a team.
  6. (aviation) The step during takeoff when the pilot commands the vehicle to lift the nose wheel off the ground during the takeoff roll.
  7. Repeated play on a radio station, etc.
    The new single enjoyed heavy rotation on MTV.

Hypernyms

Derived terms

Related terms

Translations

See also


French

Etymology

Latin rotationem, accusative of rotatio.

Noun

rotation f (plural rotations)

  1. rotation

Swedish

Noun

rotation c

  1. act of turning a physical object or a coordinate system around a center or an axis

Declension

Inflection of rotation 
Singular Plural
Indefinite Definite Indefinite Definite
Nominative rotation rotationen rotationer rotationerna
Genitive rotations rotationens rotationers rotationernas