from
The Collaborative International Dictionary of English v.0.48
Concussion \Con*cus"sion\, n. [L. concussio, fr. concutere,
concussum, to shake violenty; con- + quatere to shake. See
{Cashier}, {Quash}.]
1. A shaking or agitation; a shock; caused by the collision
of two bodies.
[1913 Webster]
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.
[1913 Webster]
2. (Med.) A condition of lowered functional activity, without
visible structural change, produced in an organ by a
shock, as by fall or blow; as, a concussion of the brain.
[1913 Webster]
3. (Civil Law) The unlawful forcing of another by threats of
violence to yield up something of value.
[1913 Webster]
Then concussion, rapine, pilleries,
Their catalogue of accusations fill. --Daniel.
[1913 Webster]
{Concussion fuse} (Mil.), one that is ignited by the
concussion of the shell when it strikes.
Syn: See {Shock}.
[1913 Webster]