Con-cŭs'sion, n.
(kon-kŭsh'un), n. [Lat. concussio, from concutere, concussum, to shake violently, from con and quatere, quassum, to shake.]
Sense 1. The act of shaking or agitating, especially by the stroke or impulse of another body.
It is believed that great ringing of bells, in populous cities, hath dissipated pestilent air, which may be from the concussion of the air. Bacon.
Sense 2. The state of being shaken; agitation; shock. “A . . . concussion of the whole globe.” Woodward.
Sense 3. (Surg.) The shock or agitation of some organ by a fall or like cause; as, a concussion of the brain. Dunglison.
Sense 4. The act of obtaining money by force or by threats; extortion. [Obs.]
Then concussion, rapine, pilleries, Their catalogue of accusation fill. Daniel.
Synonyms—See SHOCK.