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Webster 1913 Edition

Concussion

Con-cus′sion

,
Noun.
[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.
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.
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
.
3.
(Civil Law)
The unlawful forcing of another by threats of violence to yield up something of value.
Then
concussion
, rapine, pilleries,
Their catalogue of accusations fill.
Daniel.
Syn. – See
Shock
.

Webster 1828 Edition

Concussion

CONCUSSION

,
Noun.
[L., to shake, or shatter. The primary sense is to beat, to strike, or to beat in pieces, to bruise, to beat down.]
1.
The act of shaking, particularly and properly, by the stoke 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.
2.
The state of being shaken; a shock; as the concussion of the brain by a stroke. It is used also for shaking or agitation in general; as the concussion of the earth.

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