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(), n.[F. rvolution, L. revolutio. See Revolve.] 1. 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. 2. Return to a point before occupied, or to a point relatively the same; a rolling back; return; as, revolution in an ellipse or spiral. That fear Comes thundering back, with dreadful revolution, On my defenseless head. Milton. 3. The space measured by the regular return of a revolving body; the period made by the regular recurrence of a measure of time, or by a succession of similar events. "The short revolution of a day." Dryden. 4. (Astron.) The motion of any body, as a planet or satellite, in a curved line or orbit, until it returns to the same point again, or to a point relatively the same; -- designated as the annual, anomalistic, nodical, sidereal, or tropical revolution, according as the point of return or completion has a fixe スポンサード リンク
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