concussion

Noun

WordNet 3.0

Noun (2)

  1. injury to the brain caused by a blow; usually resulting in loss of consciousness
  2. any violent blow
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Webster's Dictionary (GCIDE)

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]

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