REVOLUTION, in politics, signifies a grand change or turn in government. In this sense the revolution is used by way of eminence for the great turn of affairs in England in 1688, when king James II. abdicating the throne, the prince and princesses of Orange were declared king and queen of England, &c.
In geometry, the revolution of any figure is its motion quite round a fixed line as an axis. The revolution of a planet or comet is nothing but its course
from one point of its orbit till it returns to the same point again.