To turn or roll round on, or as on, an axis, like a wheel; to rotate, - which is the more specific word in this sense.
To move in a curved path round a center; as, the planets revolve round the sun.
To pass in cycles; as, the centuries revolve.
To return; to pass.
To cause to turn, as on an axis.
Hence, to turn over and over in the mind; to reflect repeatedly upon; to consider all aspects of.
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.
Return to a point before occupied, or to a point relatively the same; a rolling back; return; as, revolution in an ellipse or spiral.
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 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 fixed relation to the year, the anomaly, the nodes, the stars, or the tropics; as, the revolution of the earth about the sun; the revolution of the moon about the earth.
The motion of a point, line, or surface about a point or line as its center or axis, in such a manner that a moving point generates a curve, a moving line a surface (called a surface of revolution), and a moving surface a solid (called a solid of revolution); as, the revolution of a right-angled triangle about one of its sides generates a cone; the revolution of a semicircle about the diameter generates a sphere.
A total or radical change; as, a revolution in one's circumstances or way of living.
A fundamental change in political organization, or in a government or constitution; the overthrow or renunciation of one government, and the substitution of another, by the governed.
