Hypertext Webster Gateway: "rotation"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Rotation \Ro*ta"tion\, n. [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.
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Rotation \Ro*ta"tion\, a.
Pertaining to, or resulting from, rotation; of the nature of,
or characterized by, rotation; as, rotational velocity.
From WordNet (r) 1.7 (wn)
rotation
n 1: the act of rotating as if on an axis; "the rotation of the
dancer kept time with the music"
2: a single complete turn (axial or orbital); "the plane made
three rotations before it crashed"; "the revolution of the
earth about the sun takes one year" [syn: {revolution}, {gyration}]
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