Rotation
[rə(ʊ)'teɪʃ(ə)n] or [ro'teʃən]
Definition
(noun.) the act of rotating as if on an axis; 'the rotation of the dancer kept time with the music'.
(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'.
(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'.
(noun.) (mathematics) a transformation in which the coordinate axes are rotated by a fixed angle about the origin.
Edited by Astor--From WordNet
Definition
(n.) 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.
(n.) Any return or succesion in a series.
(a.) Pertaining to, or resulting from, rotation; of the nature of, or characterized by, rotation; as, rotational velocity.
Checked by Clifton
Synonyms and Antonyms
SYN:Turn, series, order, succession, revolution, course, reversion, recurrence
ANT:Simultaneity, perpetuity, constancy, non-intermittence, contemporaneousness
Edited by Daniel
Examples
- The force of the water causes rotation of the turbine and of the shaft which is rigidly fastened to it. Bertha M. Clark. General Science.
- In the rotation of crops there was a recognised season for wild oats; but they were not to be sown more than once. Edith Wharton. The Age of Innocence.
- Proper reversals of the current are accompanied by continuous motion, and since the disk and shaft rotate with the coil, there is continuous rotation. Bertha M. Clark. General Science.
- The wind strikes the sails, and causes rotation; and the stronger the wind blows, the faster will the wheel rotate. Bertha M. Clark. General Science.
- A rotation of this kind seems alone a sufficient security against any practices which cannot be avowed. Adam Smith. An Inquiry into the Nature and Causes of the Wealth of Nations.
- The same effect would be produced if the disc, during its rotation, were seen by successive electric sparks. Frederick C. Bakewell. Great Facts.
- By rotation of a coil (armature) within a magnetic field, that is, between the poles of a magnet, current is obtained. Bertha M. Clark. General Science.
- The machine which exists is accepted in all its essentials: the goo-goo yearns for a somewhat smoother rotation. Walter Lippmann. A Preface to Politics.
- Water issues in a narrow jet similar to that of the ordinary garden hose and strikes with great force against the lower part of the wheel, thereby causing rotation of the wheel. Bertha M. Clark. General Science.
- Rotation of _W_ induces rotation of _w_, and a small force at _W_ is able to overcome a large force at _w_. Bertha M. Clark. General Science.
- He was able to make out the mountains in the moon, the satellites of Jupiter in rotation, the spots on the revolving sun; but his telescope afforded only an imperfect view of Saturn. Walter Libby. An Introduction to the History of Science.
- In this, the relief blocks are replaced by engraved copper rolls which rotate continuously and in the course of their rotation automatically receive coloring matter on the engraved portion. Bertha M. Clark. General Science.
- As a result _M_ moves downward, and thereby induces rotation in the large wheel _L_. Bertha M. Clark. General Science.
- If, however, the tube is held, during the rotation of the disk, over the inner row of unequally spaced holes, the musical tone disappears, and a series of noises take its place. Bertha M. Clark. General Science.
- Before it rose it had acquired the greatest motion the earth's rotation could give it. Benjamin Franklin. Memoirs of Benjamin Franklin.
- The gyroscopes in this, moved by a gasoline engine, revolved in a vacuum at a speed of three thousand rotations a minute. Various. The Wonder Book of Knowledge.
Typist: Mag