Concussion

//kənˈkʌʃən// noun

Definitions

Noun
  1. 1
    A violent collision or shock. countable, obsolete, uncountable

    "It is believed that great ringing of bells, in populous cities, hath dissipated pestilent air; which may be from the concussion of the air."

  2. 2
    any violent blow wordnet
  3. 3
    An injury to part of the body, most especially the brain, caused by a violent blow, followed by loss of function. US, countable, uncountable
  4. 4
    injury to the brain caused by a blow; usually resulting in loss of consciousness wordnet
  5. 5
    The unlawful forcing of another by threats of violence to yield up something of value. countable, obsolete, uncountable

    "Then Concussion, Rapine, Pillories, / Their Catalogue of Accusations fill."

Etymology

From Latin concussiō. Equivalent to concuss + -ion.

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