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ROTATION
rotation, rotary motion
(noun) the act of rotating as if on an axis; “the rotation of the dancer kept time with the music”
rotation
(noun) a planned recurrent sequence (of crops or personnel etc.); “crop rotation makes a balanced demand on the fertility of the soil”; “the manager had only four starting pitchers in his rotation”
rotation, revolution, gyration
(noun) 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”
rotation
(noun) (mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin
Source: WordNet® 3.1
Etymology
Noun
rotation (countable and uncountable, plural rotations)
(chiefly, uncountable) The act of turning around a centre or an axis.
A single complete cycle around a centre or an axis.
A regular variation in a sequence, such as to even-out wear, or people taking turns in a task; a duty roster.
(mathematics, geometry) An operation on a metric space that is a continuous isometry and fixes at least one point.
(baseball) The set of starting pitchers of a team.
(aviation) The step during takeoff when the pilot commands the vehicle to lift the nose wheel off the ground during the takeoff roll. (see also: V2)
Repeated play on a radio station, etc.
Synonyms
• turning
• revolution
• rota, roster, duty roster, schedule, turn, turn and turn about, cycling
Hypernyms
• (mathematics): isometry, transformation
Source: Wiktionary
Ro*ta"tion, n. Etym: [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, a.
Definition: Pertaining to, or resulting from, rotation; of the nature of, or characterized by, rotation; as, rotational velocity.
Source: Webster’s Unabridged Dictionary 1913 Edition
Recent Word Finds
Word of the Day
25 January 2025
DERMATOGLYPHICS
(noun) the study of the whorls and loops and arches in the fingertips and on the palms of the hand and the soles of the feet; “some criminologists specialize in dermatoglyphics”
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