Definition of rotation

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Rotation (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..

Lern More About Rotation

Stationed :: Station (n.) One of the places at which ecclesiastical processions pause for the performance of an act of devotion; formerly, the tomb of a martyr, or some similarly consecrated spot; now, especially, one of those representations of the successive stages of our Lord's passion which are often placed round the naves of large churches and by the side of the way leading to sacred edifices or shrines, and which are visited in rotation, stated services being performed at each; -- called also Station o
Roll :: Roll (v. i.) To move, as a curved object may, along a surface by rotation without sliding; to revolve upon an axis; to turn over and over; as, a ball or wheel rolls on the earth; a body rolls on an inclined plane..
Gyration :: Gyration (n.) The act of turning or whirling, as around a fixed center; a circular or spiral motion; motion about an axis; rotation; revolution..
Tachometer :: Tachometer (n.) An instrument for measuring the velocity of running water in a river or canal, consisting of a wheel with inclined vanes, which is turned by the current. The rotations of the wheel are recorded by clockwork..
Cylinder :: Cylinder (n.) A solid body which may be generated by the rotation of a parallelogram round one its sides; or a body of rollerlike form, of which the longitudinal section is oblong, and the cross section is circular..
Orientation :: Orientation (n.) The tendency of a revolving body, when suspended in a certain way, to bring the axis of rotation into parallelism with the earth's axis..
Circumduction :: Circumduction (n.) The rotation of a limb round an imaginary axis, so as to describe a concial surface..
Verticity :: Verticity (n.) The quality or power of turning; revolution; rotation.
Couple :: Couple (a.) Two rotations, movements, etc., which are equal in amount but opposite in direction, and acting along parallel lines or around parallel axes..
Equirotal :: Equirotal (a.) Having wheels of the same size or diameter; having equal rotation.
Rotatory :: Rotatory (a.) Producing rotation of the plane of polarization; as, the rotatory power of bodies on light. See the Note under polarization..
Rotation :: Rotation (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..
Paraboloid :: Paraboloid (n.) The solid generated by the rotation of a parabola about its axis; any surface of the second order whose sections by planes parallel to a given line are parabolas.
Rote :: Rote (v. i.) To go out by rotation or succession; to rotate.
Whirl :: Whirl (v. t.) A turning with rapidity or velocity; rapid rotation or circumvolution; quick gyration; rapid or confusing motion; as, the whirl of a top; the whirl of a wheel..
Gyroscope :: Gyroscope (n.) A rotating wheel, mounted in a ring or rings, for illustrating the dynamics of rotating bodies, the composition of rotations, etc. It was devised by Professor W. R. Johnson, in 1832, by whom it was called the rotascope..
Operameter :: Operameter (n.) An instrument or machine for measuring work done, especially for ascertaining the number of rotations made by a machine or wheel in manufacturing cloth; a counter..
Revolution :: Revolution (n.) The act of revolving, or turning round on an axis or a center; the motion of a body round a fixed point or line; rotation; as, the revolution of a wheel, of a top, of the earth on its axis, etc..
Twirl :: Twirl (n.) The act of twirling; a rapid circular motion; a whirl or whirling; quick rotation.
Screw :: Screw (n.) A straight line in space with which a definite linear magnitude termed the pitch is associated (cf. 5th Pitch, 10 (b)). It is used to express the displacement of a rigid body, which may always be made to consist of a rotation about an axis combined with a translation parallel to that axis..
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