Dictionary.net

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"

a drastic and far-reaching change in ways of thinking and behaving; "the industrial revolution was also a cultural revolution"

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"

a drastic and far-reaching change in ways of thinking and behaving; "the industrial revolution was also a cultural revolution"

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.

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.

The motion of a body, especially a heavenly body, in a closed curve around a fixed point, or the complete turn of the body made in such a course; as, the revolution of the earth in its orbit; the motion of a body in spinning on an axis; as, the revolution of a wheel; circuit; a decided and sudden change; as, a revolution in ideas or character; the overthrow of one form of government and the setting up of another, by the people.

Motion round a centre; rotation; entire change in government; revolt.

The act of revolving; motion around a center.

A radical change as of government.

n. [Latin] Act of revolving or turning round on an axis; rotation;— circular motion of a body round a fixed point or center, bringing every part of the surface or periphery back to its first place or position;— in astronomy, the motion of any body, as a planet or satellite, in a curved line or orbit until it returns to the same point again;- space measured by the motion of a revolving body in its orbit; also, time or period in which it returns to the same point or place;— continued course or time marked by the regular return of seasons, years, &c.;— any great or vital change of ideas, sentiments, &c.;— in politics, a total or radical change in the government and constitution of a country — usually implying suddenness, violence, or force, as contrasted with reform.