AGITATION, Agitatio, properly signifies shaking; or a reciprocal motion of a body this way and that. See MOTION.The Prophets, Quakers, Pythian Priestesses, &c. were subject to violent agitations of body, &c. See PROPHET, QUAKER, PYTHIA, etc.Among Physiologists, the term is sometimes appropriated to that species of earthquake, called Tremor, Arietatio. See EARTHQUAKE.Among philosophers, it is chiefly used for an intestine commotion of the parts of any natural body. See INTESTINE.Thus, fire is said to agitate the minute particles of bodies. See FIRE.—Fermentation, and Effervescence, are attended with a brisk agitation of the particles. See FERMENTATION, EFFERVESCENCE, and PARTICLE.Agitation of beasts in the forest, anciently signified the Drift of beasts in the forest. See DRIFT, and FOREST.